Serving the HVAC industry since 1992
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ALAN offers several types of gaskets: Basic rings, with a range of I.D.-O.D.; Gasket strips, a long rectangular piece uncut and coiled; and Ring Sets, comprising concentric gasket rings, cut but not separated.
All gaskets are GSA-2 sided, 1/8" thick 2# polyethylene foam.
ALAN's gaskets can be removed and replaced without tearing within five minutes of initial placement, if need be - a feature not found on other gaskets - yet they remain just as securely attached once set.
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Unit of Measure
Items
Gaskets

Ring Gasket
Gaskets

Ring Gasket
Butyl Gasket

Butyl Gasket
Neoprene Gasket

Neoprene Gasket
Thickness N/A 1/8 in
Material N/A Polyethylene Foam
Inner Diameter N/A 4 in5 in6 in7 in8 in9 in10 in12 in14 in16 in18 in20 in24 in N/A 4 in5 in6 in7 in8 in9 in10 in12 in14 in16 in18 in20 in24 in N/A N/A
Outer Diameter N/A 7 in8 in9 in10 in11 in12 in13 in15 in17 in19 in21 in23 in27 in N/A 6 in7 in8 in9 in10 in11 in12 in14 in16 in18 in20 in22 in26 in N/A N/A
Width N/A 1.5 in N/A 1 in N/A N/A
Roll Length N/A N/A N/A 30 ft N/A 50 ft
Industry Standards N/A N/A N/A MIL-C 0 18969 B, Type 2 Underwriters Laboratories (UL) Underwriters Laboratories (UL) 723 (ASTM E 84) N/A Underwriters Laboratories (UL) Underwriters Laboratories (UL) 723 (ASTM E 84)
Color N/A N/A N/A Grey N/A
Density N/A N/A N/A 1.45 g/cm³ N/A 3 to 14 lb/ft³
Solids N/A N/A N/A 99.8 % N/A
Flash Point1 N/A N/A N/A 400 ºF N/A
Minimum Shelf Life N/A N/A N/A 1 y N/A
Minimum Life Expectancy N/A N/A N/A 20 y N/A
Service Temperature N/A N/A N/A -65 to 220 ºF N/A
Class N/A N/A N/A B N/A
Minimum Elongation N/A N/A N/A Over 300 % N/A
Weight per Box N/A N/A N/A 60.0 lb N/A 60.0 lb
Linear Shrinkage2 N/A N/A N/A N/A 3 %
Maximum Water Absorption N/A N/A N/A N/A 5 %
Features N/A N/A N/A
  • UL Approved
  • Color-Grey
  • Density: 1.45 g/cm³+0.05
  • Solids: 99.8%
  • Flash Point: 400 ºF-Penske Martens CC (ASTM E-134)
  • Shelf Life: 1 year minimum
  • Life Expectancy: 20 years minimum
  • Service Temperature: -65 ºF to 220 ºF
  • Oil Migration: None (applied to galvanized steel and subjected to 158 ºF for one week)
  • Flexibility: No cracks when bent around a 1/4" mandrel after 3 weeks at 158 ºF
  • Adhesion: Excellent to most non-porous surfaces
  • MIL-C 0 18969 B, Type 2
  • Class B
  • Elongation (% min): Over 300 %
  • UL 723 (ASTM E 84) Test Data:
    Flame spread = 10
    Fuel Contribution = 0
    Smoke Density = 10
 		N/A
  • UL Approved
  • Hazardous Material: None
  • Odor: Negligible
  • Density: 3 to 14 lbs Per cubic foot
  • Percent volatile by volume: 0
  • Flash Point : N/A
  • Extinguishable media: Water spray, dry chemical, CO2
  • Unusual fire and explosion hazards: Toxic fire/gas hazard includes hydrogen chloride, a pulmonary irritant.
  • Linear Shrinkage: (Max 24 hrs. at 158 ºF)=3.0 %
  • Flammability (Burning rate, MVS 302 Horizontal strip 4" x 14 1/2" x 1/2" = 4.0 in/min
  • Water Absorption (Max) = 5 %
  • UL 723 (ASTM E 84) Test Data:
    Flame spread = 10
    Fuel Contribution = 0
    Smoke Density= 0
Note N/A Outer Diameter is 3" more - gaskets are 1 1/2" wide all around. N/A Outer Diameter is 2" more - gaskets are 1" wide all around. N/A N/A
Units Per Package N/A 1 N/A 1 N/A 750 N/A 750
Package Type N/A Each N/A Each N/A Box N/A Box
  • 1 Penske Martens CC (ASTM E-134)
  • 2 Maximum 24 hrs. at 158 ºF
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