Roofing Products International, Inc.
Membranes
Adhesives
Bonding Adhesives:
   Solvent Based
   Water Based
Seam Adhesive
Water Cut Off Mastics
Caulk (Paste Sealant)

Accessories
Application Handbook

RUBBER TO SUBSTRATE BONDING ADHESIVE
DATA SHEET

Description:
RPI Bonding Adhesive is a general purpose synthetic rubber adhesive for brush or roll coating application. Bonding adhesive has a long tack time, and the bond is resistant to aging, heat, cold, water and gas.

Suggested Uses:

  1. EPDM, EPT, and EP rubber sheeting to cement, wood, and metal
  2. Butyl and Neoprene rubber sheeting to cement, wood, and metal.
  3. Various cloth and rubber to canvases to cement, wood, and metal.
Physical Characteristics:
  1. Excellent resistance to aging.
  2. Good resistance to heat, color, and water.
  3. 60 square feet/gallon adhesive film coverage can be expected.

Typical Physical Properties:

Base: Neoprene
Color: Amber
Solvents: Acetone, Textile Spirits, Toluol and Xytol
Solids: 24.5% + 4%
Viscosity: 2300-2700 Centipoises, RVF Brookfield, No. 3 Spindle, @ 10 RPM
Weight/Gallon: 7.05 Pound-Nominal
Specific Gravity: .845-Nominal
Shelf Life: 1 year when stored at temperature no higher than 90°F in unopened containers.

Preparation of Substrates:
Ideally solvent cleaning and roughing of sheet stock is recommended, but good results can be obtained by wiping the talc off the rubber with a brush or cloth. Best results are obtained with solvent washed stock to clean, dry, cement, wood, or metal. Approved cleaning solvents include Heptane, Hexane, or white gas.

Application Instructions:
Apply bonding adhesive by sprayer or roller to clean, dry, grease free surfaces. Both surfaces to be bonded must be coated with the bonding adhesive. An open time of five to sixty minutes is recommended before assembly depending on ambient conditions. The adhesive should be allowed to dry until it does not stick to a dry finger touch.

Post Application Clean-Up:
Toluene is excellent for post application clean-up.