This specification covers casein and other protein-based adhesives in the form of dry powder or granular product for use in adhering wood to wood. This specification provides testing procedures and specifies requirements to differentiate the physical, adhesive, and durability properties of commercially available casein and casein-protein adhesives. Adhesives are classified as class B (water resistant) and class C (dry use). Testing procedures include working life, block shear strength, plywood shear test, and storage life. The adhesive shall conform to the viscosity requirement, working life, block shear, tension, and storage life of this specification. Other requirements include instruction sheet, packing, and marking requirements.
This abstract is a brief summary of the referenced standard. 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. 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.
1.1 This specification covers casein and other protein-blend adhesives for use adhering wood to wood. The adhesive type covered by this specification is a dry powder or granular product comprising a mixture of casein, or casein and other protein source, with the necessary dry chemicals to effect solution when the mixture is added to water.
—Although the term casein adhesive is used throughout this specification, historically, the adhesive subclass described in 1.1 has been known as casein glue. See Terminology D907, adhesive types.
1.2 Limitations—Cooked casein adhesives are not covered by this specification.
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.4 The following safety hazards caveat pertains only to the test method portion, Sections 8 through 13, 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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D899 Practice for Applied Weight Per Unit Area of Liquid Adhesive
D905 Test Method for Strength Properties of Adhesive Bonds in Shear by Compression Loading
D906 Test Method for Strength Properties of Adhesives in Plywood Type Construction in Shear by Tension Loading
D907 Terminology of Adhesives
D1084 Test Methods for Viscosity of Adhesives
D2556 Test Method for Apparent Viscosity of Adhesives Having Shear-Rate-Dependent Flow Properties
D5266 Practice for Estimating the Percentage of Wood Failure in Adhesive Bonded Joints
E104 Practice for Maintaining Constant Relative Humidity by Means of Aqueous Solutions
PPP-D-729 Drums, Shipping and Storage, Steel, 55 Gal (208 L)
casein adhesive; casein glue; protein-type adhesive;
ICS Number Code 83.180 (Adhesives)
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Citing ASTM Standards
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