Vellumoid, Inc. Gasket and Sealing Materials
       
Vellumoid, Inc. - Worcester, MA
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Vellumoid Inc.


Amorim Products
Gasket Material Specifications

Accoseal® (DC-113 to NC-710)
Accoseal® (NC-711 to NC-733)
Cork/Hypalon Blend
CorkRubber TechSeal

Composition Cork
Cork/Synthetic Rubber Blend
Cork/Nitrile Blend
Cork/Neoprene Rubber Blend
Cork/Sponge Blend

Amorim Product Overview

Please use our Quick Reference Product Guide above, to quickly locate the material to meet your needs.
Click the Materials Index for a complete list of materials by product number.

Material Specifications
Quick Referance Products Guide - Gasket and Sealing Materials
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Materials Index

 

 

Specifications and Product Data featured on this page:
NC-711, NC-757, NC-775 , LC-800
DK-149, NK-730, RK-374, NC-733


Accoseal® (NC-711 to NC-733)
Material Characteristics and Uses Type Compressibility
% @ 28 kg/cm²
(400 psi)
Minimum
Recovery
%
Hardness
Shore
Type A
Volume Change %
ASTM Oil No. 1
70 hrs. @ 100°C
(212°F)
ASTM Oil No. 3
70 hrs. @ 100°C
(212°F)
ASTM Fuel A
22 hrs. @ 21.1 - 29.4°C
(70-85°F)
NC-711
(Sheets & Rolls)
Like DC-113. but with maximum resistance to oils and solvents. UL-Listed. Cork and aromatic-fuel-
resistant synthetic rubber
15-25 (sheets)
15-30 (rolls)
70 (sheets)
60 (rolls)
70-85 (sheets)
70-85 (rolls)
-15 to +10 (sheets)
-10 to +10 (rolls)
-10 to +15 (sheets)
-5 to +15 (rolls)
-10 to +10 (sheets)
-5 to +10 (rolls)
NC-757 Low cost, highly compressible with good resistance to transformer oils. Cork and aromatic-fuel-
resistant synthetic rubber
30-50 70 55-70 -10 to +10 -5 to +30 -5 to +15
NC-775 High quality, excellent resistance to transformer oils. Cork and aromatic-fuel-
resistant synthetic rubber
15-30 75 70-85 -10 to +10 -10 to +15 -10 to +10
LC-800 Outstanding flexibility and resilience over wide range of temperatures. Cork and silicone (Si) 10-30 70 65-80 -10 to +15 0 to 50 -
DK-149 Highly compressible. Resists fatigue; for cushior pads, low sealing stress requirements. Sponged synthetic
rubber and cork
25-45 80 35-50 -5 to +20 20 to 70 0 to 40
NK-730 Similar to DK-149 with maximum resistance to oils, solvents, and fuels. Sponged synthetic
rubber and cork
30-50 75 30-50 -20 to +5 -10 to +10 -10 to +10
RK-374 Low cost, highly compressible for nonsolvent uses. Sponged synthetic
rubber and cork
30-50 80 30-50 - - -
NC-733 Performs in a wide range of wet or dry friction applications, operating successfully on jobs ranging from printer drives to heavy-duty transmissions in tractors or road graders. Foe applications where facing pressure is below 6.33 kg/cm² (90 psi). Synthetic rubber and
highest-quality
granulated cork
10-25 75 75-85 - - -10 to +10

Typical Values
All values are average values determined in accordance with ASTM F 104 teesting methods for Type 2 materials. Should not be used as basis for material specifications. Material thickness of 1.6 mm (.062") used for all testing.

Forms and Sizes:
Sheets - Below .8 mm (1/32") thickness, available in 228 mm x 914 mm sheets (9" x 36"); .8 mm and above (1/32") thickness, available in 914 mm x 914 mm sheets (36" x 36").
Rolls - DC-100, DC-205, NC-710, and NC-711 are avilable in 1.016 m wide rolls (40") in thicknesses ranging from .8 mm (1/32") to 4.8 mm (3/16").

     

Material Specifications:
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Vellumoid, Inc. · 54 Rockdale Street · Worcester, MA 01606-1928
Phone 1-800-609-5558 · 508-853-2500 · Fax 508-852-0741
E-mail: service@vellumoid.com