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    RUBBERALL® Membrane
      Seam Tape
      Tape Primer-Plus
      Membrane Cleaner
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  MSDS Sheets
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Seam Tape primerRUBBERALL® Seam Tape Primer-Plus is a solvent-based primer designed to clean and prime RUBBERALL® membrane prior to application of RUBBERALL® tape products. RUBBERALL® taped products will not adhere or perform over time if Seam Tape Primer-Plus is not used. Seam Tape Primer Plus must be applied with a RUBBERALL® scrub pad.

RUBBERALL® Seam Tape Primer Plus is also recommended for used in cleaning membrane surfaces when using Rubber to Rubber adhesive as it enhance the bonding of the membranes as compared to using membrane cleaner.

RUBBERALL® Seam Tape Primer-Plus can be used on galvanized steel, stainless steel, and aluminum/metal drip edge in conjunction with the application of RUBBERALL® taped products on these surfaces.



Synthetic Rubber Polymers


Translucent Grey


Heptane, Toluene, Methyl Alcohol

Percent Solids:

16 0 18%


Very thin, free flowing


6.62 lb / gal nominal

Specific Gravity:

0.793 +/- 0.01 (H2O = 1)

Flash Point Degrees F (SETA):

O°F (17.8° C)

Volatile Organic Compound (V.O.C.) Content:

Not to exceed 5.55 lb / gal (664 g/L)

Estimated Coverage's:

200 - 250 square feet per gallon.

DOT Label Required:

Flammable Liquid

** Typical Values: (Based on material tested in our laboratories but variable from sample to sample.) Typical Values should not be construed as a guaranteed analysis of any specific lot or as specification items.

Membrane surfaces must be clean, dry and free of foreign materials. Excessively dirty membrane should be cleaned with RUBBERALL® membrane cleaner and a clean rag. The solids suspended in the seam tape primer tend to settle to the bottom of the container and should be thoroughly stirred before use. During use, re-stir frequently (every 15 - 20 minutes). The primer must be used full strength - DO NOT DILUTE.

Scrub in primer with a RUBBERALL® Scrub Pad saturated with the seam tape primer. The surface should appear wet while scrubbing. Prime an area wider than the area being spliced to insure proper adhesion to the primed surfaces only. Do not merely paint the primer on; it must be applied with the scrub pad. The primed surface should be uniformly black without streaks. If the scrub pad becomes filled with debris or contaminants from the membrane, discard and use a new scrub pad.Allow the surfaces to dry to the touch (usually less than ten (10) minutes before applying RUBBERALL® taped products or rubber-to-rubber adhesive.

The solvents used in the seam tape primer are extremely flammable and must be kept away from non-explosion-proof electrical equipment, sparks, open flames, and other sources of ignition. Do not use drill-mounted stirrers to mix the seam tape primer. Closed containers can explode when exposed to high temperatures.Do not smoke when using.

Avoid breathing vapors and use only in a well-ventilated area. Be familiar with the Material Safety Data Sheet for this product.

RUBBERALL® Seam Tape Primer-Plus contains ingredients which could be harmful is mishandled. Contact with skin and eyes should be avoided and necessary protective equipment and clothing should be worn. For important health, safety, and handling information, consult Material Safety Data Sheet.

Store in original, unopened container, indoors, and out of direct sunlight at temperatures below 80°F. The shelf life is approximately 24 months if stored in original unopened containers at temperatures between 60° and80°F. ROTATE STOCK.

This sheet is meant only to highlight RUBBERALL® products and specifications. Information is subject to change.

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