Seam Tapes
Tape Primer/Activator
One Way Air Vents
Pourable Sealer
DATA SHEET
DESCRIPTION:
RPI Seam Tape Primer is a solvent-based primer designed to prepare surfaces of Royal
Edge EPDM for bonding using the Royal Edge Tape Adhesive Products. It has been
formulated to be fast drying and to increase the shear and peel strength of splices made
with the Royal Edge Seam Tape. It is designed to be used as a primer after
cleaning splices with RPI Tape Wash .
RPI Seam Tape Primer can be used on Royal Edge EPDM membrane, galvanized steel, stainless steel, and aluminum.
Base: Butyl
Color: Translucent
Solids, %: 15+/- 1
Viscosity: Very Thin, Free Flowing
Pounds per Gallon: 6.50 +/- 0.01
Specific Gravity: 0.78 +/- 0.01
Flash Point Degrees F (SETA): Less than O°F
Solvents: Aliphatic & Aromatic Blends
Estimated Coverage's: 200 - 250 square feet per gallon.
DOT Label Required: Flammable Liquid
** Typical Values: 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.
APPLICATION INSTRUCTIONS:RPI Seam Tape Primer is formulated for use with RPI Royal Edge EPDM membrane surfaces to be spliced using RPI Seam Tape and other laminates (Cured Cover Strip and Flashing). 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 RPI 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.
PRECAUTIONS:
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.
Avoid breathing vapors and use only in a well ventilated areas. Be familiar with the Material Safety Data Sheet for this product.
HANDLING:RPI Seam Tape Primer 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.
RECOMMENDED STORAGE:
Store in original, unopened container, indoors, and out of direct sunlight at temperatures below 80
°F. The shelf life is approximately six months. ROTATE STOCK