Foster ElastiSeal 95-88 Butyl Rubber Sealant

Foster ElastiSeal 95-88 Butyl Rubber Sealant

ElastiSeal Sealant is a single component, solvent release, butyl-based sealant specifically designed to provide excellent, exterior weathering properties. It is easy to apply and tool and exhibits superior adhesion to a variety of clean surfaces.

ElastiSeal Sealant is an excellent choice for exterior sealing applications and is compatible with an array of substrates such as glass, metals, concrete, wood, masonry, some plastics and insulation including PIR, PUR and cellular glass and foil, polymeric and kraft insulation facings and jacketing.

ElastiSeal Sealant can also be used for flashing projections, terminations and laps in metal jacketing where a complete moisture and vapor seal is required.

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Product Description

ElastiSeal Sealant Features

  • Excellent adhesion – adheres to a variety of surfaces with primer needed
  • Permanently flexible
  • Non-stringing formula is easy to apply
  • Non-staining formula does not discolor surfaces

ElastiSeal Sealant may meet requirements for LEED 2009 IEQ 4.1 Low-Emitting Materials, Adhesives and Sealants for some applications where the use falls under the ‘Other’ category. Refer to LEED guides for more information. VOC content: 250 g/l, less water and exempt solvents.

Applicable Standards

  • AAMA 808.3-05 Exterior Perimeter Sealing
  • ASTM C1311 – Solvent Release Sealants in Building Construction, max joint movement of ±7.5%
  • Federal Specifications:  TT-S-001657 Type I – Butyl Rubber, Solvent Release Sealing Compound for Buildings and TT-C-1796A – Caulking Compound for Metal and Wood Seam 

Service Temperature Limits:
Temperature at sealant surface.
-40°F to 250°F (-40°C to 121°C)

Wet Flammability (ASTM D56):
Flash Point: 105°F (40°C)

Water Vapor Permeance (Typical Average):
ASTM F1249:
0.02 perms (0.012 metric perms) at 0.078 in. (2.0 mm) dry film thickness. Tested at 100°F (38°C) and 90% RH
0.04 perms (0.024 metric perms) at 0.078 in. (2.0 mm) dry film thickness. Tested at 73°F (23°C) and 50% RH

Surface Burining Characteristics (ASTM E84):
Flame Spread: 0
Smoke Developed: 0
Tested in two 1/8” (3.2 mm) beads spaced 8” (20 cm) on center applied to 1/4 inch (6.4 mm) inorganic reinforced cement board. The flame spread may vary at different product thicknesses and/or when applied over other surfaces. 

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General Insulation Company Inc. is an insulation supplier / insulation distributor that stocks and fabricates a wide variety of industrial and commercial air barrier, vapor barrier, moisture and water barrier products for the construction market.

Foster ElastiSeal 95-88 Butyl Rubber Sealant Technical Data Sheet

Foster ElastiSeal 95-88 Butyl Rubber Sealant Safety Data Sheet