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Inland Coatings RC 1950 Polyurethane Sealant

RC 1950 Polyurethane Sealant is a technologically advanced, high solids, single component moisture-cure polyurethane elastomeric sealant. In addition, RC 1950 is a brush-grade sealant and an excellent all-purpose sealer to address roof leaks on most roofing substrates. RC 1950 is produced in an aluminum gray color that allows for faster cure times than white sealants. Mil for mil, RC 1950 provides greater protection against leaks and water penetration than most sealants due to its tenacious adhesive properties, higher tensile strength and low vapor permeability values. RC 1950 offers a wider window of application than water-based acrylic sealants.

Product Type: 1K (1 component) Sealant, Elastomeric Sealant, Primer, Sealer, Solvent free (100% Solids) Sealant

Application Area: Roofing Substrates

Compatible Substrates & Surfaces: Metal, Steel, Wood

Cure Method: Moisture Cure

Application Method: Brush

Chemical Family: Polyurethanes (PU)

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Identification & Functionality

Chemical Family

Features & Benefits

Benefits of RC 1950 Polyurethane Sealant
  • Durability: Resist acids, alkali and salts for longer product lifespan.
  • Seal and Waterproof: Eliminate potential wash-off problems with early water resistance.
  • Superior Weatherability: Increase longevity with high ozone and UV resistance.
  • Thermal Stability: Resist cracking and peeling due to high tolerance of hot and cold weather extremes.
  • Easy Application: Spray, roll or brush only one component.
  • Extended Application Season: Apply even during colder months, thanks to the superior formula.

Applications & Uses

Application Area
Application Method
Compatible Substrates & Surfaces
Cure Method
Recommended Uses
  • RC 1950 is specifically designed as a protective sealant during the detail phase of complete elastomeric roof coating restoration work.
  • This product is formulated to seal fasteners and seams and penetrations on metal roof systems, seams and penetrations on single-ply membrane systems and fill cracks and voids on older BUR systems.
  • In addition, RC 1950 is an ideal all-purpose sealant to quickly and permanently seal leak areas on virtually any roofing system.
  • Metal buildings and roofs
  • Flashings and gutters
  • Modified and BUR roofs
  • EPDM, Hypalon and TPO roofs
  • Polyurethane Foam and Concrete surfaces
General Application Instructions
  • RC 1950 may be applied by heavy brush.
  • Apply RC 1950 only to clean, dry, sound surfaces free of loose particles or other foreign matter.
  • Base coats must be applied to RC 1950 coated sections within 48 hours to insure proper adhesion.
  • Apply RC 1950 at the maximum thickness of 32 wet mils to ensure proper curing.
  • Product application should be suspended immediately and our technical service personnel contacted if the results being obtained are less than desirable.
Coverage Rates

Approx. 750 fasteners per gallon or 150 fasteners per 20 oz sausage tube; 100 linear feet of seams at 4” wide and 40 wet mils per gallon.

Limitations & Precautions
  • Avoid moisture contamination in sealed containers.
  • Store in a dry environment at temperatures between 55 - 75 ºF.
  • Keep away from heat, open flame or sparks.
  • Use only in well-ventilated areas with proper protective equipment.
  • Avoid breathing vapor or mist.