HomeMy WebLinkAboutGlazing Rubber Products LetterGLAZING RUBBER PRODUCTS, INC.
August 28,
Coral Architectural Products, Inc.
3010 Rice Mine Road
Tuscaloosa, AL 35406
RE: ASTM C-864
Dear William Smith, Sr.,
Your part numbers S611-SB13-SB14-S615-SB16-SB18 AND SB20 Setting blocks are made of 80 +/-
Durometer EPDM. These rubber blocks meet in accordance with ASTM C-864 specifications. We have
attached a copy of the compound test results for your use.
Sincerely,
Karmen Pharris
Glazing Rubber Products, Inc, 71 Easy Street, Dawsonville, GA 30534
Glazing Rubber Products, Inc.
71 Easy Street
Dawsonville, GA 30534
Compound Test Results
Dense EPDM Testing to ASTM C-864 Specifications
GRP#80 Duro Qualification: ASTM C-864, Option II
ASTM
Product
Typical
Pass/
Test Method
Characteristic
Results
Require
Fail
D-2240
Hardness, Shore A
82
80 +/- 5
Pass
D-395
Compression set, max %
27.8
35
Pass
D-1149
Ozone resistance
no cracks
no cracks
Pass
D-412, Die C
Tensile strength, psi
1820
1800
Pass
D-412, Die C
Elongation at rupture, min %
300
175
Pass
D-573
Heat aging:
Hardness increase, max
Durometer points
-2
+10
Pass
Change in tensile strength, max %
-3.8
-15
Pass
Change in elongation, max %
37.0
-40
Pass
D-624, Die C
Tear strength, lbf/in
218
100
Pass
D-746
Brittleness temperature (-40maxC)
no cracks
no cracks
Pass
D-925
Non -staining
no migratory
no migratory
Pass
Stain
stain
Para. 9.9
Flame propagation,
Option I
> 1 in.
4 in. max
Fail
Option II
no limit
no limit
Pass
April 24, 2011
Coral Architectural Products, Inc.
3010 Rice Mine Road
Tuscaloosa, AL 35406
RE: ASTM C-864
Dear William Smith Sr.,
Your part numbers NG-1 AND NG-15 are made of 70 +/-5 Durometer EPDM. These rubber extrusions
meet in accordance with ASTM C-864 (with tensile strength of 1200) specifications. Specification data
sheet for this material is attached for your review.
Sincerely,
Karmen Pharris
Glazing Rubber Products, Inc, 71 Easy Street, Dawsonville, GA 30534
r
Glazing Rubber Products, Inc.
71 Easy Street
Dawsonville, GA 30534
Compound Test Results
Dense EPDM Testing to ASTM C-864 Specifications
GRP#70 Duro Oualification: ASTM C-864, Option II
ASTM
Product
Typical
Pass/
Test Method
Characteristic
Results
Require
Fail
D-2240
Hardness, Shore A
68
70 +/- 5
Pass
D-395
Compression set, max %
27.8
30
Pass
D-1149
Ozone resistance
no cracks
no cracks
Pass
D-412, Die C
Tensile strength, psi
1920
1800
Pass
D-412, Die C
Elongation at rupture, min %
320
250
Pass
D-573
Heat aging:
Hardness increase, max
Durometer points
+3
+10
Pass
Change in tensile strength, max %
+1.6
-15
Pass
Change in elongation, max %
33.0
-40
Pass
D-624, Die C
Tear strength, lbf/in
226
150
Pass
D-746
Brittleness temperature (-40maxC)
no cracks
no cracks
Pass
D-925
Non -staining
no migratory
no migratory
Pass
Stain
stain
Para. 9.9
Flame propagation,
Option I
> 1 in.
4 in. max
Fail
Option II
no limit
no limit
Pass