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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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Norman Efros Manufacturer Profile: Does the sealant need to be paintable or must it match the substrate? Typically, the higher the cost, the greater the performance you can expect. Answering these questions before you begin will help you select the best sealant for the job:.

Product Specifications

Select the proper sealant Painters can err by c8334 the wrong type of sealant or expecting too much from it. This abstract is a brief summary of the referenced standard. Applying sealants to gaps and joints in construction projects takes more than a strong wrist and a steady hand. This standard does not purport to address all of the safety concerns, if any, associated with its use.

Is this an above — or below-ground application? These are the most common in the paint industry and come in a variety of formulations that affect cost, durability and adhesion. Answering these questions before you begin will help you select the best sealant for the job: Once cured, polyurethanes have limited paintability and may react with alkyd- or oil-based paints.

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

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Sealants, Caulks, Caulking Guns – PaintPRO

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. They shrink little while curing and can withstand traffic once cured. Other articles in this issue: Sealant selection is very much performance-based.

All purpose sealant with average flexibility and adhesion Sealant selection is very much performance-based. Some must be applied to a primed surface, but in general they adhere well to a variety of surfaces.

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.

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. Once cured, they are very flexible, extremely durable and resist ultraviolet light degradation. Unauthorized reproduction of any information on this site is a violation of existing copyright laws.

ASTM C – 17 Standard Specification for Latex Sealants

The following tests shall be done: While these reactive- or chemical-curing ast are difficult to gun and tool and require solvent cleanup, they have excellent flexibility and have good to excellent durability. It should be recognized by the user that not all sealants meeting this specification are suitable for all applications and all substrates. They maintain their properties over a wide temperature range.

How much joint movement is required? Is it an inside astmm outside application?

Successful gap-filling starts with selecting the right sealant for the job and continues with proper surface preparation and application. Sealants are tested to federal specifications or standards set by ASTM. They receive different ratings based on their ability to move, flex and return to their original configuration. What is the ambient and surface temperature at the time of application? Currently, there is no ISO standard similar to this specification.

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Test methods relate to special standard substrates of glass, wood and aluminum. This specification covers latex sealants used for sealing joints in building construction. The physical properties of the sealant shall conform to the specified requirements according to type and grade. Like any family, each has strong points, weak points and idiosyncrasies that can make it a very good — or very poor — match for the job at hand. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

If tests are required using substrates in addition to or other than standard, they should be so specified for testing. Urethane hybrid blended acrylics are at the high end of the acrylic family in cost and performance and can often be used in a variety of applications where c84 silicone or polyurethane sealant may be used. They are low in cost and come in a wide range of performance grades.

Selecting a sealant requires an understanding of the joint: