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Sika Sikaflex 1A Colonial White 20oz Sausage 91005

Sikaflex-1A Colonial White is a moisture-cured non-sag polyurethane in a 20 oz sausage. It seals joints up to 1/2 inch and bonds without a primer on most substrates.

  • Colonial White 20 oz sausage for joints up to 1/2 inch
  • Elongation 550% with plus or minus 35% joint movement
  • Certified to NSF/ANSI/CAN 61 for potable water
$12.13
Availability: In stock ( 260 Available )

Sikaflex-1A Colonial White

Sikaflex-1A is a moisture-cured non-sag polyurethane joint sealant. This Colonial White 20 oz sausage (part 91005) is for joints up to 1/2 inch, including green and damp concrete. It holds plus or minus 35% movement and bonds to most construction materials without a primer. White and colonial-white can yellow slightly in UV, so this color is a trim match, not a forever-bright white.

Key Features

  • Moisture-cured 1-component non-sag polyurethane
  • Colonial White 20 oz sausage, part 91005
  • Plus or minus 35% movement (ASTM C719)
  • Elongation 550% (ASTM D412)
  • White colors can yellow slightly in UV
  • 18-month sausage shelf life

Applications

  • Trim and perimeter joints that need a colonial-white match
  • Windows, door frames, and flashing
  • Green and damp concrete joints
  • Potable-water joints after NSF 61 service is confirmed

Technical Specifications

Property Value
Manufacturer Sika
Product Sikaflex-1A
Part no. 91005
Unit 20 oz sausage
Color Colonial White
Movement +/- 35% (ASTM C719)
Elongation 550% (ASTM D412)
Tack-free 3 to 6 hours at 73 F
Application temperature 40 F to 100 F
Shelf life 18 months (sausage)

Product documents: Sikaflex-1A Product Data Sheet (PDF)

Frequently Asked Questions

What UV yellowing does Sikaflex-1A Colonial White show?
White and colonial-white tend to yellow slightly in ultraviolet light. Light colors can also yellow if they sit in front of a direct gas-fired heating element.

What size is Sikaflex-1A Colonial White?
The sausage is 20 oz (600 ml), part 91005.

What bead yield does Sikaflex-1A Colonial White give?
A 1/4 inch by 1/4 inch bead yields approximately 48 linear feet per sausage. A 1/2 inch by 1/2 inch bead yields approximately 12 linear feet.

What radon work uses Sikaflex-1A Colonial White?
EPA suggests polyurethane as a caulk and crack sealant for radon reduction. This is a urethane-based joint sealant, not a dedicated radon system.

What chlorine limit does Sikaflex-1A Colonial White have?
Maximum continuous chlorine is 5 ppm. Not for swimming pools or submerged work with strong oxidizers, and not where water stays above 120 F.

What elongation does Sikaflex-1A Colonial White have?
550% at break (ASTM D412). Tear strength is 55 lb/in (ASTM D624). Movement capability is plus or minus 35%.