Durodyne
 

 

 

 

Gasketing

UL723 Neoprene Gasket

UL723 is Closed-cell, NBR/PVC Neoprene Gasketing. When this material is attached to a flange which is then assembled to a second flange, the material is compressed and fills gaps and irregularities creating a seal. It meets ASTM C534 Grade 1, MIL-P-15280 (Form S).

UL723 Submittal Form >

 

 

 

 

 

 

Properties
Type
Closed-cell, NBR/PVC
Polymer
NBR/PVC
Color
Black
Density
3-6 lb/ft
ASTM D1056 Classification
2B1 (C1,F1,M)
Compression Resistance @ 25%
2-4 psi
Compression Set @ 50%:
30% max
Tensile
30 psi min
Elongation
100% min.
Water Vapor Permeability
Less-than 0.01 Perm-in
Water Absorption
10% max
Fluid Immersion
100% max.
Flammability
25/50 Rated (up to 2) - ASTM E84
Listed - UL 94 HF-1, V-0, 5VA
Pass - FMVSS-302
Pass - FAR 25.853
Flame Spread Index
25
Smoke Developed Index
50
Service Temperature
-40F to 200F
Thermal Condutivity (75F)
0.24 BTU-IN/HR-FT²-°F

 

 

 

 

Vinyl Foam - PVC

Vinyl Foam is a low density PVC Foam. When this material is attached to a flange which is then assembled to a second flange, the material is compressed and fills gaps and irregularities creating a seal.

Vinyl Foam Submittal Form >

 

 

 

 

 

 

Properties
Type
Low Density PVC Foam
Color
Black/Gray
Density
7-10
Hardness
25
Force to Compress
3.6 psi
Water Absorption
3% (by volume)
Tensile Strength
30 psi
Elongation
190%
Flammability
FM VSS 302
Temperature Use (remains Flexible)
-20F to 80F
Compression Deflection
1.3 psi

 

 

 

 

Urethane Gasket

Urethane Gasket is a 2 lb. Polyester Urethane. When this material is attached to a flange which is then assembled to a second flange, the material is compressed and fills gaps and irregularities creating a seal.

Urethane Submittal Form >

 

 

 

 

 

 

Properties
Type
2 lb. Polyester Urethane
Density
2+/- 10% lbs./ft²
Tensile Strength
Min: 18 - Average: 25 psi
Elongation
Min: 160 - Average: 220%
TearResistance
Min: 1.90 - Average: 2.50 pli
Flammability: Meets Requirements of:
FM VSS 302
UL94 HF-1
Compression Force Deflection
25% Deflection Min: 0.40 - Average: 0.50 psi
30% Deflection Min: 0.45 - Average: 0.60 psi
Retention of Tensile Strength
Min. 70%: 3 hours, 105C, steam autoclave

 

 

 

 

Neoprene Gasket

Neoperene Gasket is a black, continuous, closed cell, medium density rubber product that has excellent resistance to oil and fuel.

Neoprene Gasket Submittal Form >

 

 

 

 

 

 

Properties
Type
Closed Cell, Rubber
Color
Black
Density
88-120 kg/m3
Hardness
50 + 10
Compression Deflection
@ 25%: 5 - 9 psi
Compression Set
@ 50%: <= 25%
Water Absorption
< 10%
Fluid Immersion
< 100%
Tear Strength
12 lbs./in.
Tensile Strength
75 psi min.
Elongation
100% min.
Flammability
FM VSS 302
UL 94 V-0, 5 VA, HF-1, HBF
Temperature Use
-20F - 160F Max (200F intermittent)

 

 

 

 

Double Sided Black Foam Tape

BF2S18 is a 1/8 thick black closed cell, crosslinked polyethylene foam coated on both sides with a high performance acrylic based adhesive with a white kraft liner. Typical applications: circular duct connectors and rectangular duct connectors.

Double Sided Black Foam Tape Submittal Form >

 

 

 

 

 

 

Properties
Type
Closed Cell
Peel Adhesion
28 oz/in*
Color
Black
Tack
21 oz***
Tensile Strength
240 oz/in
Temperature Use
10F - 176F** (203F intermittent)
*Foam destruction
**The pressure sensitive adhesive used in this tape construction will perform at higher than the listed temperatures. The temperature limits are due to the polyolefin foam substrate.
***Tack numbers may not be exact value of tack as foam can tear during tack test.

 

 

 

 

 

 

 

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