Two methods exist for priming glass using SRP Totalseal urethanes. One is the SRP7000, a 1-step clear activator that promotes bonding to completely clean glass where contamination has been removed by thorough cleaning. The other is the SRP7050, similar to the SRP7000, but offers the additional protection of a “Black Out” primer that is not part of the SRP7000 method. Like the SRP7000, the SRP7050 requires completely clean glass to ensure a safe, strong and lasting bond.

SRP 7000 Glass Activator (Glass Option 1)

The SRP7000 One Step for Glass is a popular choice for installers on the go. Like the SRP7050 Black Glass Primer 1-step method, using SRP7000 requires a completely clean windshield. If the windshield has contaminated after it is cleaned, clean it again. The SRP7000 can be used with all SRP Totalseal adhesives.

Steps for SRP7000 One Step for Glass Application

1. Thoroughly clean glass until all oil, grease and other contaminates have been removed. If needed, use a light abrasive pad, such as a Scotch-Brite® pad, to clean off contaminated areas.
2. If contaminates cannot be removed, it is recommended to use the 2-Step Glass Prep and Prime Method to ensure a proper bond.
3. Inspect the expiration date, which is located on the bottom of the SRP7000 to ensure that the product is fresh. Note the expiration dates and lot numbers on your Installation Record.
4. Once the SRP7000 is open, write the date of the opening on the label. All SRP primers have an open life of 7 days. Dispose of any unused product once the 7-day open-life has expired.
   
   Never use any adhesive or primer product after the expiration printed on the bottle or tube. The use of expired product can result in product failure and may cause injury or death to vehicle occupants in the event of an accident.
   
   
5. Shake the SRP7000 bottle for one-minute prior to use to ensure a proper mixture.
6. Using a clean uncontaminated dauber or a clean lint-free disposable cloth, apply SRP7000 in a continuous motion to the bond line of the replacement glass surface. Start in the lowest part of the windshield or tempered part to prevent excess SRP7000 from running onto and staining the non-bonding and visible areas of the glass.
7. Using a clean, lint-free, cloth or disposable towel, immediately wipe the treated surface in a scrubbing motion to remove any excess SRP7000 from the glass.
8. Allow the SRP7000 to dry for 3 minutes before applying adhesive.

Tech Tips:

• SRP7000 Glass Primer has an open life of 7 days when immediately closed after use.
• Properly dispose of any expired primer and adhesive products.
• Apply SRP7000 in a continuous motion around the bond line. Slowly turn the dauber to ensure complete coverage of the bond line of the glass.
• SRP does not recommend applying SRP7000 until immediately before replacement glass installation in order to prevent contamination of the bond line, and to ensure that no steps are missed during the installation process. In cold weather situations where the glass must be prepped ahead of time, be sure to keep the glass contaminate free.
• Never “Re-Load” daubers or cloths by dipping them into fresh prep or primer products a second time nor “Re-Use” cloths or shop towels that have been washed as chemicals may remain on the fabric that can contaminate the entire bottle of prep or primer product.
• SRP 7000 can be used with all SRP urethanes.

The use of contaminated product may result in adhesive failure of the urethane adhesive system in the event of an accident.

SRP7050 Glass Primer (Glass Option 2)

The SRP7050 Glass Primer is a one-step, “black out” primer designed to promote adhesion between the urethane and the glass. The “black out” properties within the SRP7050 serve as a barrier to protect the installed urethane adhesive from long-term breakdown caused by the sun’s harmful UV rays, especially on glass without a frit. The SRP7050 can also be used to primer and seal painted metal. See “Inspecting, Cleaning, and Priming the Pinchweld” for more information.

Steps for SRP7050 One Step for Glass Application

1. Thoroughly clean glass until all oil, grease and other contaminates have been removed. If needed, use a light abrasive pad, such as a Scotch-Brite® pad, to clean off contaminated areas. If contaminates cannot be removed, it is recommended to use different glass.
2. Inspect the expiration date, which is located on the bottom of the SRP7000 to ensure that the product is fresh. Note the expiration dates and lot numbers on your Installation Record.
   
   Never use any adhesive or primer product after the expiration printed on the bottle or tube. The use of expired product can result in failure of the urethane adhesive system in the event of an accident.
   
   
3. Vigorously shake the SRP7050 Glass Primer bottle until you hear the ball inside the bottle start to rattle. Once the ball starts moving inside, continue to shake the bottle for at least 1 minute prior to use.
4. Securely hold the bottle on a hard, flat surface. Remove the cap using a twisting motion and place it on a clean surface. Once open, pull up on plastic ring and remove inner plastic plug. Discard plastic plug.
5. 1.Apply the SRP7050 Glass Primer with a clean, uncontaminated dauber. Start on the lowest part of the windshield or tempered part to prevent excess SRP7050 from running onto the glass. Do not overlap passes as this can cause air bubbles that can be trapped in the primer line.
6. Tightly close the SRP7050 bottle with the original cap as soon as possible after use to minimize solvent flash and/or potential contamination. Properly dispose of any unused product once the 7 day open-life has expired.
7. 1.Allow the SRP7050 Glass Primer to completely dry, normally 8-10 minutes depending on environmental conditions. In cold applications, allow as much as 25 minutes for the primer to dry before applying SRP Totalseal adhesive products to the glass.
   
   Failure to allow the primer to flash off completely may result in adhesive failure of the urethane adhesive system in the event of an accident.
8. 1.The primed glass will remain active for 8 hours after the SRP7050 application. If fresh adhesive is not applied to the primed glass within 8 hours, re-activate the primer line by applying SRP7050 Glass Primer according to the procedures outlined in the section. This can be done only once after the glass was originally primed with SRP7050

Tech Tips:

• SRP7050 Glass Primer has an open life of 7 days when immediately closed after use.
• Properly dispose of any expired primer and adhesive products.
• Apply SRP7050 in a continuous motion around the bond line. Slowly turn the dauber to ensure complete coverage of the bond line of the glass. Do not overlap passes.
• SRP does not recommend applying SRP7050 until immediately before replacement glass installation in order to prevent contamination of the bond line, and to ensure that no steps are missed during the installation process. In cold weather situations where the glass must be prepped ahead of time, be sure to keep the glass contaminate free.
• Never “Re-Load” daubers or cloths by dipping them into fresh prep or primer products a second time nor “Re-Use” cloths or shop towels that have been washed as chemicals may remain on the fabric that can contaminate the entire bottle of prep or primer product.
• SRP7050 can be used to prime and seal scratches on painted metal surfaces. SRP7050 can not be used on cut-back urethane, PAAS, or other rubber parts.
• SRP7050 can be used with all SRP urethanes.

The installer must make an assessment of the pinchweld’s condition once they have cut out the existing glass. The condition of the pinchweld, along with the condition of the existing urethane bead, must be inspected for signs of rust, corrosion, and anything else that will impact the fit and function of the replacement glass.

Priming Procedure For Pinchweld

SRP5025 Paint and Pinchweld Primer offers a one-step solution to all of your pinchweld priming needs. The SRP5025 Paint Primer saves you money by eliminating the need for separate primers for exposed metal, encapsulated parts, painted surfaces, and moldings. SRP5025 also reactivates PAAS and trimmed urethane that has been exposed to air for an extended amount of time.

SRP5025 Paint Primer is compatible with all cutback urethane, paint, metal and PVC surfaces used in the production of today’s vehicles. While SRP5025 contains no rust inhibitors, it helps to seal and protect metal surfaces, preventing air and moisture contact that leads to future rust development.

Use SRP5025 Paint Primer for small scratches and exposed bare metal surfaces less than 1 inch2 (size of your thumb) For exposed metal surfaces over 1 inch2 use SRP5055 Bare Metal Primer

The SRP7050 Glass Primer can also be used to prime light scratches on the painted pinchweld surface. It can not, however, be used on the cut back adhesive, PAAS, moldings or other rubber parts.

Steps for SRP5025 Paint and Pinchweld Primer

1. Inspect the expiration date, located on the bottom of the SRP5025 to ensure that the product is fresh. Note the expiration dates and lot numbers on your Installation Record.


Never use any adhesive or primer product after the expiration printed on the bottle or tube. The use of expired product can result in failure of the urethane adhesive system in the event of an accident.
2. Once the SRP5025 is open, write the date of the original opening on the label. All SRP primers have an open life of 7 days. Dispose of any unused product once the 7-day open-life has expired.
3. Shake the SRP5025 Paint Primer bottle for 1 minute prior to use to ensure a proper mixture.
4. Remove the cap using a twisting motion and place the cap on a clean surface.
5. Using a clean, uncontaminated dauber, apply the SRP5025 Paint Primer to bright scratches, exposed metal under 1” by 1”, painted pinchweld surfaces and cut-back urethane that has been exposed for more than 60 minutes.
6. Tightly close the SRP5025 bottle with the original cap as soon as possible after use to minimize solvent flash and/or potential contamination.
7. Allow SRP5025 Paint Primer to “flash off”, or completely dry, normally 5-10 minutes depending on environmental conditions, before extruding fresh urethane. In colder applications, the flash off time may be as long as 25 minutes.
8. Surfaces primed with SRP5025 will remain active for 60 minutes after the primer has flashed off. If fresh adhesive has not been applied or the replacement glass installed to the pinchweld surfaces within this time limits, re-prime the inactive surfaces with SRP5025 according to the steps previously outlined.

Tech Tips:

• SRP5025 Paint Primer has an open life of 7 days when immediately closed after use.
• Properly dispose of any expired primer and adhesive products.
• If you find rust or corrosion on the pinchweld, immediately stop priming and consult OEM recommendations for removal and restoration of the pinchweld. Never place SRP Primers on top of rust or corrosion.
• For urethane that has been exposed to air for over 60 minutes, use a clean dauber to refresh the cut back urethane with SRP5025.
• SRP does not recommend applying SRP5025 until immediately before replacement glass installation in order to prevent contamination of the bond line.
• SRP7050 should only be used on painted surfaces. If SRP7050 gets onto PAAS or cutback urethane you must remove that section of the PAAS or cutback urethane so the bond between the old urethane and the new urethane will not be contaminated.
• Never place SRP5025 on top of SRP7050.
• Never “Re-Load” daubers or cloths by dipping them into fresh prep or primer products a second time nor “Re-Use” cloths or shop towels that have been washed as chemicals may remain on the fabric that can contaminate the entire bottle of prep or primer product.

The use of contaminated product may result in adhesive failure of the urethane adhesive system in the event of an accident.

Priming Procedures for PAAS Parts

Some OEM automotive manufacturers use a Pre-Applied Adhesive System (PAAS) on their replacement auto glass. These systems are being utilized to ensure that the new adhesive bead is applied in the correct position on the glass and ensure proper spacing between the glass and the pinchweld.

n order to complete a safe installation, a different set of procedures must be followed to prepare the PAAS surface for adhesive application. SRP5025 Paint Primer is used to re-activate the pre-applied adhesive bead.

Steps:

1. 1Some glass manufacturers use a special wax or a mold release for protection of the PAAS bead during the final production process. Use a clean abrasive pad, such as a Scotch-Brite® Pad, to abrade the PAAS bead surface, and remove any wax or agents that may be on the surface.
2. Inspect the expiration date on SRP5025 Paint Primer bottle to ensure that the product is fresh. Note the expiration date and lot number of the SRP5025 on the Installation Record. All SRP primers have an open life of 7 days. If the bottle has not been opened, use a permanent marker to write the opening date on the bottle.Dispose of any unused product once the 7-day open-life has expired.


Never use any adhesive or primer product after the expiration printed on the bottle or tube. The use of expired product can result in failure of the urethane adhesive system in the event of an accident.
3. Shake the SRP5025 Paint Primer bottle for 1 minute prior to use to ensure a proper mix.
4. Remove the cap using a twisting motion and place it on a clean surface.
5. Using a clean, uncontaminated dauber, apply the SRP5025 Paint Primer to the entire PAAS bead in order to re-active the pre-applied urethane.
6. Tightly close the SRP5025 bottle with the original cap as soon as possible after use to minimize solvent flash and/or potential contamination
7. Allow SRP5025 Paint Primer to dry completely, normally 5-10 minutes depending on environmental conditions, before extruding fresh urethane into the channel on the PAAS urethane bead. The PAAS urethane bead will remain active for 60 minutes after SRP5025 application.

Tech Tips

• SRP5025 Paint Primer has an open life of 7 days when immediately closed after use.
• SRP does not recommend applying SRP5025 until immediately before replacement glass installation in order to prevent contamination of the bond line and to ensure that all surfaces remain active for bonding to the fresh adhesive.
• Never “Re-Load” daubers or cloths by dipping them into fresh prep or primer products a second time nor “Re-Use” cloths or shop towels that have been washed as chemicals may remain on the fabric that can contaminate the entire bottle of prep or primer product.

The use of contaminated product may result in adhesive failure of the urethane adhesive system in the event of an accident.

Priming Procedures for Fiberglass Surfaces

Fiberglass is becoming more common for glass shops that replace glass on RV’s, trucks, and tractor-trailers. Manufacturers are increasingly using this material because of its ability to be molded in almost any shape and its light weight.

While most windshields are still set into metal or aluminum pinchwelds, quite often side and back tempered parts utilize fiberglass. To ensure that SRP Totalseal adhesives properly bond to these surfaces and to complete a proper replacement, follow these special procedures.

Steps

1. Inspect the fiberglass surface to be sure that no corrosion or UV degradation has occurred. This damage will appear as fading or discoloration in the fiberglass surface. If fading appears, using light sandpaper (1200 grit or higher), lightly wet sand the fiberglass surface until all discoloration is removed.
2. Thoroughly clean the bond line and make sure the area is free from dust and is completely dry. Once completely cleaned and dry, prime the bond line on the fiberglass with SRP7050 Glass Primer. Follow the priming procedures as described in the section of the manual titled “Priming Procedures For Auto Glass.”

Tech Tips

• Always wear a proper protective mask, gloves, and other recommended safety equipment when sanding fiberglass surfaces and follow manufacturers recommendation.
• Review and understand all directions and notes in the sections titled “Priming Procedures For Auto Glass” before priming fiberglass surfaces and any other safety procedure that may be recommended by the manufacturer.

Pinchweld Priming after Vehicle Has Been Repainted

Some installers do business with collision repair shops. Sometimes, they must install a new windshield on a vehicle that has been recently painted. This should not be a cause for concern as long as the following scenarios are identified, and the proper steps followed.

Scenario 1

The entire bead of urethane was left on the pinchweld and the existing urethane bead was painted over.

1. Once the paint has fully cured, perform the full cut method on the existing urethane bead. Leave 0.05” to 0.08” (about 1mm to 2mm) of urethane on the pinchweld.
2. Follow regular priming method of the SRP5025 paint primer.

Scenario 2

The existing urethane bead was completely removed. The pinchweld area was repaired and primer coat painted on.

1. 1.Make sure the primer coat has fully cured.
2. ightly abrade the primer coat on the bond area of the pinchweld with an abrasive cloth such as a Scotch-Brite® green pad and clean off area.
3. Follow regular priming method of the SRP5025 paint primer.

Scenario 3

The existing urethane bead was completely removed. The pinchweld area was repaired and fully color painted.

1. 1.Make sure the all paint has fully cured.
2. 1.Remove top coat, basecoat, and clear coat (if used) to expose the primer coat.
3. 1.If step #2 exposes large areas of bare metal (over 1” by 1”), use SRP5055 Bare metal primer or have the body shop reapply the primer coat to those areas.
4. 1.Lightly abrade the primer coat on the bond area of the pinchweld with an abrasive cloth such as a Scotch-Brite® green pad and clean off area.
5. Follow regular priming method of the SRP5025 Paint Primer or SRP5055 Bare Metal Primer.
   • SRP does not recommend applying SRP5025 or SRP5055 until immediately before replacement glass installation in order to prevent contamination of the bond line and to ensure that all surfaces remain active for bonding to the fresh adhesive.
   • Never “Re-Load” daubers or cloths by dipping them into fresh prep or primer products a second time nor “Re-Use” cloths or shop towels that have been washed as chemicals may remain on the fabric that can contaminate the entire bottle of prep or primer product.

The use of contaminated product may result in adhesive failure of the urethane adhesive system in the event of an accident.

Often times, due to body shop work or rectification of rust damaged areas, large areas of bare metal or aluminum are exposed. Care must be taken with these areas to make sure the bare metal is protected and properly primed.

The SRP5025 Paint and Pinchweld Primer and the SRP5055 Bare Metal Primer are needed when rust rectification has been done or bare metal needs to be prepared for urethane application.

Rust and Corrosion

When rust is extensive, SRP only recommends consulting the OEM or referring the vehicle to a body shop for repair or reconstruction of the pinchweld.

Small Areas of Rust, Corrosion and Bare Metal or Aluminum

When rust areas are small, less than 1” by 1” (thumb sized), repair these spots and seal them with SRP5025 Paint and Pinchweld Primer. Make sure all rust is removed and the metal is clean before applying any SRP Totalseal products.

Steps

1. Remove the original adhesive bead down to the bare metal of affected area. Remove more around the rusted area to ensure all rust is exposed. Do this prior to trimming back the remainder of the existing adhesive bead. The existing bead will protect the bonding surface from dust created in the repair process.
2. Use a Wire Brush, Rotary Wire Brush, or similar tool to remove all rust from the damaged area. If the corrosion has destroyed or reduces the pinchweld’s strength and thickness, take the vehicle to an autobody repair facility to restore the area to its original OEM condition.
3. Use a brush to remove all remaining dust or rust debris from the rectified area.
4. Clean the metal with an approved metal cleaner such as MEK or 100% Acetone. Allow to dry.
5. Inspect the expiration date, located on the bottom of the SRP5025 to ensure that the product is fresh. Note the expiration dates and lot numbers on your Installation Record.


Never use any adhesive or primer product after the expiration printed on the bottle or tube. The use of expired product can result in failure of the urethane adhesive system in the event of an accident.
6. Once the SRP5025 is open, write the date of the original opening on the label. All SRP primers have an open life of 7 days. Dispose of any unused product once the 7-day open-life has expired.
7. Shake the SRP5025 bottle for at least 1 minute prior to use to ensure a proper mixture.
8. Remove the cap using a twisting motion and place the cap on a clean surface.
9. Using a clean, uncontaminated brush, apply the SRP5025 to the exposed metal. Make sure to slightly overlap paint and adhesive bead.
10. Tightly close the SRP5025 bottle with the original cap as soon as possible after use to minimize solvent flash and/or potential contamination.
11. Allow SRP5025 to “flash off”, or completely dry, normally 10 minutes depending on environmental conditions, before extruding fresh urethane onto the surface or installing the replacement. In colder applications, the flash off time may be as long as 25 minutes.
12. Trim back the remainder of the adhesive bead and prime areas as describes in the section entitled “Priming Procedure for Pinchweld”.

Rust and Corrosion and Bare Metal or Aluminum (Large Areas)

SRP5055 Bare Metal Primer is an easy to use, one-step, fast drying solution for all of your large area, bare metal (over 1” by 1”) priming needs. Unlike many other bare metal primers, SRP Totalseal urethanes can be applied directly to fully cured SRP5055 without further priming.

SRP5055 Bare Metal Primer meets all OEM requirements and is compatible with all urethane, paint, and metal surfaces used in the production of today’s vehicles. While SRP5055 contains no rust inhibitors, it helps to seal and protect metal surfaces, preventing moisture contact that leads to future rust development.

SRP5055 is not designed to replace automotive paint primer coatings in major restoration. When corrosion compromises the pinchweld’s strength and thickness, take the vehicle to an autobody repair facility to restore the rusted area to its original OEM condition.

Steps

1. 1.Remove the original adhesive bead down to the bare metal of affected area. Remove more around the rusted area to ensure all rust is exposed. Do this prior to trimming back the remainder of the existing adhesive bead. The existing bead will protect the bonding surface from dust created in the repair process.
2. 1.Use a Wire Brush, Rotary Wire Brush, or similar tool to remove all rust from the damaged area. If the corrosion has destroyed or reduces the pinchweld’s strength and thickness, take the vehicle to an autobody repair facility to restore the area to its original OEM condition.
3. 1.Use a brush to remove all remaining dust or rust debris from the rectified area.
4. 1.Clean the metal with an approved metal cleaner such as MEK or 100% Acetone. Allow to dry.
5. 1.Inspect the expiration date, located on the bottom of the SRP5055 Bare Metal Primer to ensure that the product is fresh. Note the expiration dates and lot numbers on your Installation Record.


Never use any adhesive or primer product after the expiration printed on the bottle or tube. The use of expired product can result in failure of the urethane adhesive system in the event of an accident.
6. 1.Once the SRP5055 is open, write the date of the original opening on the label. All SRP primers have an open life of 7 days. Dispose of any unused product once the 7-day open-life has expired.
7. 1.Shake the SRP5055 bottle for at least 1 minute prior to use to ensure a proper mixture.
8. 1.Remove the cap using a twisting motion and place the cap on a clean surface.
9. 1.Using a clean, uncontaminated brush, apply the SRP5055 to the exposed metal. Make sure to slightly overlap paint and adhesive bead.
10. 1.Tightly close the SRP5055 bottle with the original cap as soon as possible after use to minimize solvent flash and/or potential contamination.
11. 1.Allow SRP5055 to “flash off”, or completely dry, normally 10 minutes depending on environmental conditions, before extruding fresh urethane onto the surface or installing the replacement. In colder applications, the flash off time may be as long as 25 minutes.
12. 1.Trim back the remainder of the adhesive bead and prime areas as describes in the section entitled “Priming Procedure for Pinchweld.”
13. 1.SRP Totalseal Adhesives can be applied directly to the SRP5055 as soon as the product has flashed off.

SRP 180HV, SRP360HV, SRP Origin and SRP Velocity adhesives are all one-component products that are applied identically. These products are among the easiest in the industry to use with high initial viscosities and superior decking properties. Once it is determined that one of these products are appropriate for the installation, follow the procedures listed below to extrude these products onto either the pinchweld or glass.

1. Inspect the expiration date on the adhesive tube to ensure that the product is fresh. The lot number and expiration dates are printed on the top of the cartridge and on peel off stickers. Note the product used, the expiration date and lot number of the adhesive on the Installation Record.


Never use any adhesive or primer product after the expiration printed on the bottle or tube. The use of expired product can result in failure of the urethane adhesive system in the event of an accident.
2. Using the appropriate caulking gun, air gun, or battery powered gun, apply the urethane adhesive to the bond line of either the prepared and primed glass or the prepared pinchweld.
3. Install replacement glass onto the pinchweld. Adjust the glass as necessary to correctly align the glass and moldings.

Please consult the most current version of the SRP Installation Manual for situations or products not listed on this page.

If you do not have an SRP Installation Manual, contact us or your regional SRP Sales Manager