RP 1.5 Single-Ply Primer

RP 1.5 is a plasticizer-free PVC and TPO primer designed to prime PVC and TPO roof surfaces to allow our 100% silicone roof coating to fully adhere.

Available in 5 gallon buckets.

This product can cover up to 1,000 square feet.

SKU: RP 1.5 Category:

Basic Uses & Description:                                                                                                                                                       

Home-Sil RP 1.5 Single-Ply Primer has been formulated with specially selected polymers to maximize coating adhesion to PVC and TPO roof membranes, and to resist the release of plasticizers by the PVC membrane. Home-Sil RP 1.5 Single-Ply Primer dries tacky, maximizing adhesion of subsequent coatings. It is also breathable, allowing the escape of any trapped moisture vapor from the substrate. Home-Sil RP 1.5 Single-Ply Primer is a plasticizer free, acrylic copolymer. It is a single component, water-based, premium quality, clear primer for brush or roller application.


Home-Sil RP 1.5 Single-Ply Primer is available in 5 gallon containers.


1. All surfaces to be primed must be clean, dry and paintable.
2. It may be necessary to power wash surfaces to enhance adhesion.

1. RP 1.5 may be brushed, rolled, or spray applied.
2. If spray applied, low-pressure airless spray equipment should be used.
3. Apply RP 1.5 at a rate of 1 gallon per 200 square feet.

1. RP 1.5 should be stored between 50 and 80 degrees Fahrenheit.
2. Shelf life is 12 months in sealed, properly stored containers.
3. Prior to use, RP 1.5 may be separated after shipping and storage, though it may look mixed. For best results, thoroughly blend contents of all containers using a power mixer for a minimum of 10 minutes prior to use.

What coverage rate should I use for RP 1.5?
This primer should be applied at a rate of 1 gallon/200 sq. ft.

How should I apply this material?
RP 1.5 may be sprayed, brushed, or rolled. The roller should be nap resistant. Low-pressure airless spray equipment can be used to apply this material.

Does this product have a UL approval rating?
All of our products are UL rated when installed on a non-combustible surface.

Which surface is this primer best for?
RP 1.5 is designed for PVC and TPO membranes.

How should I clean up afterwards?
Use normal precautions to avoid getting the product on your skin (wear long pants, socks, long sleeves, and work gloves). If you do get product on your skin, you can scrub it off with soap and water. Product will not come out of clothing or shoes. Clean tools and equipment after application with 100% mineral spirits and a rag.

How do I check that I am applying at the correct coverage rate?
We have mil gauges available to check your coverage thickness while you are working.

To what substrates can I apply this product?
RP 1.5 is designed to be used on PVC and TPO membranes.

How long should the material sit before being walked on?
Most of our products cure in less than 24 hours, but to be safe you should wait 24 hours before walking or placing equipment on the freshly applied product. This rule also applies to adding a second coat.

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