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Seam Tight Rubber Seam Compound

SeamTight decreases the need for mesh on most seams and penetrations when used on properly prepared surfaces. Effectively protect your roof against alligatoring and other damaging conditions with the SeamTight roof repair product. Designed with 400% elongation, 1000 PSI tensile strength and UV stable, The result are a strong yet flexible membrane that can withstand roof wear of all kinds on seams, fasteners, and penetrations.

Can be use on the following roof types

  • EPDM
  • Metal Buildings and Roofs
  • Modified and BUR Roofs
  • Urethane Foam Roofs
  • Single Ply Roofs

EPDM Roofs

The surface must be free of any oils, moisture, rust scale, soil or other contaminants that may interfere with good adhesion. Remove any loose material from seams or other surfaces with a wire brush or scraper. Oil and grease should also be removed with solvents or an appropriate cleaner, such our RoofProtect. In many cases, high pressure water blasts will be sufficient to prepare the surface.

For best results, the temperature of the ambient air and the substrate should be within a range of 40° - 110°F. Although lower temperatures can be used for brush applications, it is recommended that the product temperature be a minimum of 70°F when pumping the product.

SeamTight can be brushed, rolled or pumped onto the surface. Apply heavy, uniform coats over fasteners, seams etc.…to ensure maximum coverage

Seam Tight


Type of Resin Synthetic Rubber
Color White
Elongation 400%
Tensile Strength 1000 PSI
Reduction None
Flash Point 101°F
Specific Gravity 0.94
Weight (lb./gal.) 7.86
Solids(%/Weight) 60±1
Solids(% by Vol.) 53±1
Viscosity* 12,000
VOC (grams/liter) 436

*Centipoise @ 100±F

The industry's only 10 year Warrantied Product

PondPro - Fix Pond and Mountains Leaks
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