ASTM C834 PDF


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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New silicone may not stick to old silicone, so proper surface preparation is the key to successful sealant repairs where silicones have been used. ASTM does not give any warranty express or c8834 or make any representation that the contents of this abstract are accurate, complete or up to date.

Link to Active This link will always route to the current Active version of the standard. Because they are hard to remove completely, especially on porous surfaces, repairs and future painting can be difficult. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

Product Specifications

Does the sealant need to be paintable or must it match the substrate? Once cured, polyurethanes have limited paintability and may react with alkyd- or oil-based paints. Unauthorized reproduction of any information on this site is a violation of existing copyright laws. Their jelly-like consistency makes them hard to tool for a nice finish, but they cure quickly and will cure at below-freezing temperatures. The following tests shall be done: If tests are required using substrates in addition to or other than standard, they should be so specified for testing.

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The physical properties of the sealant shall conform to the specified requirements according to type and grade. Historical Version s – view previous versions of standard. 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.

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. It is essential, therefore, that the type and grade be specified for proper description of a sealant.

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. The inch-pound in parenthesis are provided for information purposes only.

Silicones are also reactive-curing compounds, but they offer easy gunning ability.

They are low in cost and come in a wide range f834 performance grades. How much joint movement is required?

Some must be applied to a primed surface, but in general they adhere well to a variety of surfaces.

Successful gap-filling starts with selecting the right sealant for the job and continues with proper surface preparation and application. This abstract is a brief summary of the referenced standard.

This specification covers latex sealants used for sealing joints in building construction. 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.

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Currently, there is no ISO standard similar to this specification.

ASTM C – 05 Standard Specification for Latex Sealants

Test methods relate to special standard substrates of glass, wood and aluminum. Even if the surface degrades c8344 heavy traffic, the compound will still maintain an effective seal. They tend to be more expensive than other types of sealants.

What is the ambient and surface temperature at the time of application?

Sealants, Caulks, Caulking Guns Selecting a sealant requires an understanding of the asrm PaintPRO Archives pg 1 of 2. Every manufacturer of quality products tests their products and labels the caulk tubes accordingly. Applying sealants to gaps and joints in construction projects takes asgm than a strong sstm and a steady hand. Norman Efros Manufacturer Profile: Is this an above — or below-ground application? Select the proper sealant Painters can err by selecting the wrong type of sealant or expecting too much from it.

Answering these questions before you begin will help you select the best sealant for the job:. Sealant types Generally, caulks and sealants are members of one of the following types of chemical families.

They shrink little while curing and can withstand traffic once cured.