The first step of using RV Rubber Roof sealant is to determine your roof’s material. Here is how to determine RV roof type: 

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• EPDM - smooth & rubbery.  White top and black bottom.  Most common RV Roof material.
• TPO - Textured & plasticky.  Same color top and bottom.
• Metal/Aluminum - Looks like a metal roof.
• Fiberglass - smooth hard gel like surface.
• PVC/Vinyl - smooth & plasticky.  Same color top and bottom.

If you’re not sure of your RV Roof type, take some pictures and email them over to support@shopliquidrubber.com. We can walk you through the whole process.

• Remove loose, flaking Lap Sealant.
• Remove any Silicone Caulking (usually clear or opaque and rubbery).
• Check for cracks or seams pulling back, coming loose.
• Look for signs of cracking, peeling, or bubbling.

• For TPO RV Roofs:

1. Sand very well with 120 grit sandpaper

• For PVC, Metal and Fiberglass RV Roofs:

1. Roughen the surface with 120 grit sandpaper

• Clean with Liquid Rubber RV Roof Cleaner for all roof types.
• Use masking tape for areas not to be painted and remove with the Primer/Coating is still wet.

• Wipe around edges and seams with an Acetone soaked rag. Do not pour Acetone directly onto roof.
• Use Liquid Rubber Lap Sealant around smaller vents and seams and Liquid Rubber Seam Tape for larger areas that need to be bridged.
• Prime around the vents and edges with appropriate RV Roof Primer. Do not Prime over Lap Sealant or Seam Tape.

1. Fiberglass, Metal, PVC/Vinyl - use Liquid Rubber Multi-Purpose Primer
2. EPDM, TPO - use Liquid Rubber EPDM & TPO primer

• When the Primer is dry (EPDM & TPO Primer is sticky when dry), apply a heavy coat of Liquid Rubber RV Roof Coating over the Primer, Lap Sealant and Seam Tape.  Leave some of the Primer exposed so you can lap onto it later.

• Wipe one side of the roof lengthwise with Acetone soaked rag and apply Primer. Allow 1-2 hours to dry (Primer remains sticky)
• Apply RV Roof Coating in a heavy coat over the Primer leaving 4-6 inches of the Primer exposed.
• Once RV Roof Coating is dry (6-8hrs) and you can work on it, wipe the other side of the roof with Acetone soaked rag and apply Primer.
• Apply RV Roof Coating in a heavy coat over the Primer.
• Once dry and you can work on it, apply additional coats in opposite directions until you use up your final recommended coverage.  ie. 5 gallons for a 30 ft RV

• Apply in dry, warm temperatures.
• 10C/50F and above.
• Below 80% humidity.
• Avoid direct, hot, intense sun.

• Use disposable gloves.
• Use throw away brushes and rollers.
• Do not let products freeze in their containers.
• Use a tarp to lay out products and keep area clean.
• Mix products well before using.
• Speak to Liquid Rubber Tech Support if you have any questions.