ASTM C1115-00

Standard Specification for Dense Elastomeric Silicone Rubber Gaskets and Accessories

SCOPE
1.1 This specification describes products composed of dense elastomeric silicone rubber that are fabricated into gaskets and accessories (such as setting blocks, spacers, and shims) for use in sealing and glazing applications in building construction. These products are used to seal or serve as components of compression sealing systems between mechanically restrained surfaces in building construction and also as components in structural silicone sealant glazing systems.
1.2 The values stated in metric (SI) units are to be regarded as the standard. The inch-pound values given in parentheses are provided for information purposes only.
1.3 Test Method C1166, as referenced in this specification, should be used to measure and describe the properties of materials, products, or assemblies in response to heat and flame under controlled laboratory conditions and should not be used to describe or appraise the fire hazard or fire risk of materials, products, or assemblies under actual fire conditions. However, results of this test may be used as elements of a fire risk assessment that takes into account all of the factors which are pertinent to an assessment of the fire hazard of a particular end use.
1.4 The following precautionary statement pertains only to the test method portion, Section 10, of this specification. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

General Information

• Status: Historical
• Publication Date: 09-Jun-2000
• ICS: 83.140.50 - Seals
• Technical Committee: C24 - Building Seals and Sealants
• Drafting Committee: C24.73 - Compression Seal and Lock Strip Gaskets

Relations

• Replaced By: ASTM C1115-06 - Standard Specification for Dense Elastomeric Silicone Rubber Gaskets and Accessories
• Effective Date: 01-May-2006
• Referred By: ASTM C1242-23 - Standard Guide for Selection, Design, and Installation of Dimension Stone Attachment Systems
• Effective Date: 10-Jun-2000
• Referred By: ASTM C1401-23 - Standard Guide for Structural Sealant Glazing
• Effective Date: 10-Jun-2000

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: C 1115 – 00
Standard Specification for
Dense Elastomeric Silicone Rubber Gaskets and
Accessories
This standard is issued under the fixed designation C1115; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope C1087 Test Method for Determining Compatibility of
Liquid-Applied Sealants with Accessories Used in Struc-
1.1 Thisspecificationdescribesproductscomposedofdense
tural Glazing Systems
elastomeric silicone rubber that are fabricated into gaskets and
C1166 Test Method for Flame Propagation of Dense and
accessories (such as setting blocks, spacers, and shims) for use
Cellular Elastomeric Gaskets and Accessories
in sealing and glazing applications in building construction.
D395 Test Methods for Rubber Property—Compression
These products are used to seal or serve as components of
Set
compression sealing systems between mechanically restrained
D412 Test Methods for Vulcanized Rubber and Thermo-
surfaces in building construction and also as components in
plastic Rubbers and Thermoplastic Elastomers—Tension
structural silicone sealant glazing systems.
D573 Test Method for Rubber—Deterioration in an Air
1.2 The values stated in metric (SI) units are to be regarded
Oven
asthestandard.Theinch-poundvaluesgiveninparenthesesare
D624 Test Method for Tear Strength of Conventional
provided for information purposes only.
Vulcanized Rubber and Thermoplastic Elastomers
1.3 Test Method C1166, as referenced in this specification,
D792 TestMethodsforDensityandSpecificGravity(Rela-
should be used to measure and describe the properties of
tive Density) of Plastics by Displacement
materials,products,orassembliesinresponsetoheatandflame
D925 Test Methods for Rubber Property—Staining of Sur-
under controlled laboratory conditions and should not be used
faces (Contact, Migration, and Diffusion)
to describe or appraise the fire hazard or fire risk of materials,
D1149 Test Method for Rubber Deterioration—Surface
products, or assemblies under actual fire conditions. However,
Ozone Cracking in a Chamber
results of this test may be used as elements of a fire risk
D1566 Terminology Relating to Rubber
assessment that takes into account all of the factors which are
D2137 Test Methods for Rubber Property—Brittleness
pertinent to an assessment of the fire hazard of a particular end
Point of Flexible Polymers and Coated Fabrics
use.
D 2240 Test Method for Rubber Property—Durometer
1.4 The following precautionary statement pertains only to
Hardness
the test method portion, Section 10, of this specification. This
D3182 Practice for Rubber—Materials, Equipment, and
standard does not purport to address all of the safety concerns,
Procedures for Mixing Standard Compounds and Prepar-
if any, associated with its use. It is the responsibility of the user
ing Standard Vulcanized Sheets
of this standard to establish appropriate safety and health
2.2 Rubber Manufacturers Association (RMA) Standard:
practices and determine the applicability of regulatory limita-
Rubber Handbook, Fourth Ed., December 1984
tions prior to use.
2.3 Other Documents:
2. Referenced Documents Uniform Freight Classification Rules
2.1 ASTM Standards:
C717 Terminology of Building Seals and Sealants
1 3
This specification is under the jurisdiction of ASTM Committee C-24 on Annual Book of ASTM Standards, Vol 09.01.
BuildingSealsandSealantsandisthedirectresponsibilityofSubcommitteeC24.73 Annual Book of ASTM Standards, Vol 08.01.
on Compression Seal and Lock Strip Gaskets. Available from the Rubber Manufacturers Association, 1400 K St., NW,
Current edition approved June 2000. Published July 2000. Originally published Washington, DC20005.
as C1115–91. Last previous edition C1115–94(1999). Available from Western Railroad Assn, Department of Services and Supply,
Annual Book of ASTM Standards, Vol 04.07. Room 1150, 222 S. Riverside Plaza, Chicago, IL 60606-5945.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
C 1115
National Motor Freight Classification Rules conditions of exposure or usage; and as settingblocks, spacers,
shims, or other accessories in glazing and sealing systems.
3. Terminology
4.3 Hardness—Each type described in 4.2 is subdivided
into various hardnesses, based on nominal durometer hardness
3.1 Refer to Terminology C717 for definitions of the
following terms used in this specification: compound, com- as shown inTable 1 andTable 2. For example, Grade H3 is 30
durometer.
pressiongasket,edgespacer,elastomer,elastomeric,expansion
gasket, gasket, hardness, seal, setting block, shim spacer, and
4.4 Class:
spacer.
4.4.1 Flamepropagationcharacteristicsofthefinishedprod-
3.2 Refer to Terminology D1566 for definitions of the
ucts can be varied depending on the degree of exposure,
following terms used in this specification: compression set,
expected usage, and intended durability desired. Products
ultimate elongation, tear strength, tensile strength, and poly-
described by this specification shall be classified as to flame
mer.
propagation as follows:
4.4.1.1 Class F—Resistance to flame propagation is re-
4. Classification
quired.
4.1 The products described by this specification are classi-
4.4.1.2 When no flame propagation resistance is required,
fied by type, hardness, class, and surface.
no class designation should be used.
4.2 Type:
4.5 Surface:
4.2.1 Type T, Tear Resistant—In general these products
4.5.1 Considerationofproductsurfacerequirementsmaybe
have a higher level of tear resistance, midrange heat aging
necessary. During the production of these products the use of
characteristics, midrange compression set resistance, and 30 to
various lubricants, release agents, dusting agents, and other
70 durometer hardness. This type is applicable where finished
solutions may be required. It may be necessary after vulcani-
products are intended to bridge or to cover a space (for
zation to remove these materials from the surfaces of the
example, expansion joint gaskets), or where high tear strength
product because of appearance, fabrication, or usage require-
is required due to conditions of exposure or usage.
ments. All products do not require removal of those materials
4.2.2 Type C, Compression Set Resistant—In general, these
or removal to the same degree of cleanliness.
products have a lower level of tear resistance, above midrange
4.5.2 Products may also be required to develop adhesion or
heat aging characteristics, a high level of compression set
to not develop adhesion to sealants with which they are in
resistance, and 30 to 85 durometer hardness. This type is
contact.
applicable where finished products are used as compression
gaskets, or where low compression set is required due to 4.5.3 Products described by this specification shall be clas-
sified as to surface condition as follows:
4.5.3.1 Surface S1—The surface of the product shall be
smooth,clean,freefromanyforeignmatter,andshallnotallow
Available from National Motor FreightAssn, 2200 Mill Road,Alexandria, VA
adhesion of sealants (see Note 1).
22314.
TABLE 1 Requirements for Dense Elastomeric Silicone Rubber Gaskets and Accessories, Type T—Tear Resistant
Hardness
Property Test Method
AAAAA
Low temperature flexibility D 2137
Hardness, Type A durometer, 65 30 40 50 60 70 D 2240
points
Compression set, max % 30 30 30 30 30 D 395
Tensile strength, min, MPa (psi) 7 (1015) 8 (1160) 8 (1160) 8 (1160) 7 (1015) D 412
Ultimate elongation, min % 500 500 500 400 200 D 412
Heat aging D 573
Hardness change, max durometer 610 610 610 610 610
points
Tensile strength change, max % 620 620 620 620 620
Ultimate elongation change, max % 630 630 630 630 630
BBBBB
Ozone resistance D 1149
(Specimen A)
Tear Strength, min, kN/m (ppi) 25 (143) 25 (143) 26 (149) 26 (149) 25 (143) D 624
C
Flame propagation , mm (in.) 100 (4) 100 (4) 100 (4) 100 (4) 100 (4) C 1166
DDDDD
Specific gravity D 792
EEEEE
Staining D 925
FFFFFG
Color
A
No failure.
B
No cracks at 73 magnification.
C
If Class F-Resistance to flame propagation is required.
D
Within 60.05 of qualified compound.
E
As specified by purchaser (see 10.11).
F
As specified by purchaser.
G
See 10.12.
C 1115
TABLE 2 Requirements for Dense Elastomeric Silicone Rubber Gaskets and Accessories, Type C—Compression Set Resistant
Hardness
Property Test Method
AAAAAAA
Low temperature flexibility D 2137
Hardness, Type A durometer, 65 30 40 50 60 70 80 85 D 2240
points
Compression set, max % 15 15 15 15 15 20 25 D 395
Tensile strength, min, MPa (psi) 5 (725) 5 (725) 5 (725) 5 (725) 5 (725) 5 (725) 5 (725) D 412
Ultimate elongation, min, % 350 300 250 200 125 100 60 D 412
Heat aging D 573
Hardness change, max, durometer 605 605 605 605 605 605 605
points
Tensile strength change, max, % 615 615 615 615 615 615 615
Ultimate elongation change, 630 630 630 630 630 630 630
max, %
BBBBBBB
Ozone resistance D 1149
(Specimen A)
Tear strength, min, kN/m (ppi) 9 (51) 9 (51) 9 (51) 9 (51) 9 (51) 9 (51) 7 (40) D 624
C
Flame propagation , mm (in.) 100 (4) 100 (4) 100 (4) 100 (4) 100 (4) 100 (4) 100 (4) C 1166
DDDDDDD
Specific gravity D 792
EEEEEEE
Staining D 925
FFFFFFFG
Color
A
No failure.
B
No cracks at 73 magnification.
C
If Class F-Resistance to flame propagation is required.
D
Within6 0.05 of qualified compound.
E
As spe
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