Can IS 851 adhesives be used for structural timber frames?

No, this specification is explicitly for non-structural woodwork. For structural load-bearing joints, other specific adhesives and mechanical fasteners should be evaluated.

What applications are suited for these adhesives?

They are ideal for indoor joinery, furniture assembly, doors, windows, and non-load-bearing partitions.

Does the standard specify environmental conditions for testing?

Yes, standard conditioning and testing typically require a temperature of 27 ± 2 °C and a relative humidity of 65 ± 5 %.

IS 851

: 1978

Specification for Synthetic Resin Adhesives For Construction Work (Non-Structural) in Wood

CurrentSpecializedSpecificationMaterials Science · Wood and Other Lignocellulosic Products

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This standard lays down the requirements for synthetic resin adhesives intended for non-structural construction work in wood, such as joinery, doors, windows, and cabinet making. It specifies the types of adhesives, their physical properties, and standardized testing methods to ensure adequate bond strength under normal indoor conditions.

Specification for Synthetic Resin Adhesives For Construction Work (Non-Structural) in Wood

Quick Reference Values

standard testing temperature27 ± 2 °C

relative humidity for conditioning65 ± 5 %

recommended wood moisture content10% to 15%

Practical Notes

These adhesives are strictly for non-structural use and must not be used in load-bearing timber members like columns or structural beams.

Ensure the timber parts to be joined have a moisture content between 10% and 15% before adhesive application to prevent joint failure.

Surfaces to be glued must be cleanly machined, flat, and free from dust, grease, and old finishes.