ASTM C Standard Specification for Latex Sealants. ASTM C This standard covers latex sealants used for sealing joints in building construction. The following are tests done within this standard: extrudability. Meets ASTM-C 40 Year Durability. Product Description: Paintable. SIITex 40 Siliconized Acrylic Latex Caulk is a white caulking. Mildew Resistant compound.

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They are easy to gun and because they are water-based, aastm clean up easily. Successful gap-filling starts with selecting the right sealant for the job and continues with proper surface preparation and application. Link to Active This link will always route to the current Active version of the standard.

ASTM C – 17 Standard Specification for Latex Sealants

ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date. Currently, there is no ISO standard similar to this specification. What is the ambient and surface temperature at the time of application? It should be recognized by the user that not all sealants meeting this specification are suitable for all applications and all substrates.

The sealant shall be composed of latex formulated with appropriate fillers, pigments, and chemical additives. Every manufacturer of quality products tests their products and labels the caulk tubes accordingly.

The following are the type and grade of sealant under this specification: Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

Is it an inside or outside application? PaintPRO Archives pg 1 of 2. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application.


Like any family, each has strong points, weak satm and idiosyncrasies that can make it a very good — or very poor — match for the job at hand.

Sealant types Generally, caulks and sealants are members of one of the following types of chemical families. Silicones are also reactive-curing compounds, but they offer easy gunning ability. Sealants used in commercial construction may be specified by the owner, architect or engineer; however, the contractor often has final say on brand and type.

The physical properties of the sealant shall conform to the specified requirements according to x834 and grade.

Because they are hard to remove completely, especially on porous surfaces, repairs and future painting can be difficult. While these reactive- or chemical-curing compounds are difficult to gun and tool and require solvent cleanup, they have excellent flexibility and have good to excellent durability.

ASTM C – 05 Standard Specification for Latex Sealants

Xstm these questions before you begin will help you select the best sealant for the job:. Once cured, they are very flexible, extremely durable and resist ultraviolet light degradation. Choices must be made after considering the amount of expansion and contraction the joint will experience at the extreme temperature ranges of the area. Typically, the higher the cost, the greater the performance you can expect.

asttm These are the most common in the paint industry and come in a variety of formulations that affect cost, durability and adhesion. Sealant selection is very much performance-based. They are low in cost and come in a wide range of performance grades.


New silicone may not stick to old silicone, so proper surface preparation is the key to successful sealant repairs where silicones have been used. Some must be applied to a primed surface, but in general they adhere well to a variety of surfaces.

Many are available in colors to match substrate, eliminating the need for painting. The inch-pound in parenthesis are provided for information purposes only. Even if the aztm degrades with heavy traffic, the compound will still maintain an effective seal. They maintain their properties over a wide temperature range. If tests are required using substrates in addition to or asgm than standard, they should be so specified for testing.

Sealants are tested to federal specifications or standards set by ASTM.

Product Specifications

Unauthorized reproduction of any information on this site is a violation of existing copyright laws. Urethane hybrid blended acrylics are at awtm high end of the acrylic family in cost and performance and can often be used in a variety of applications where a silicone or polyurethane sealant may be used.

They tend to be more expensive than other types of sealants.

The following tests shall be done: Does the sealant need to be paintable or must it match the substrate? It is the responsibility of the user of this standard to establish appropriate asfm and health practices and determine the applicability of regulatory limitations prior to use.

Historical Version s – view previous versions of standard.