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Universal PVA Universal PVA
Universal PVA is a general purpose woodworking adhesive which forms the basis of specialised PVAC adhesives for the furniture and woodworking industries. It is a one part synthetic resin emulsion which has been specially developed for indoor bonding operations one or both hardwoods and softwoods. CC PVA gives a strong bond between closely fitting wood surfaces such that failure will generally be by fracture of the wood rather than by failure of the bond. It conforms to the requirements of BS 4071:1906. And it is not designed for exterior use.

Features
* Bond strength generally stronger than the timber itself
* Developed to ensure it does not produce excessive wear on wood working tools
* High solids
* Fast setting
* Dries opaque
* Suitable for hot and cold press work:
* Good application characteristics
* Can be used on all woods including oily teak
* Freeze / thaw stable
* Complies with BS 4071 1996

General Uses
CC PVA is intended for wood to wood jointing by mortice and tenon, doweled. plain or bevelled lap joints, etc. In addition, it is suitable for bonding aluminium Or PVC edge trims. wood veneers and decorative laminated plastics to wood or chipboard cores,

Method of Use
IMPORTANT Before embarking on any work involving CC PVA consult the separate Safety Data Sheet should be carefully studied by those carrying out the work.

Surface Preparation
Surfaces must be clean, dry, and free from dust or loose materiel, The two surfaces comprising the joint must be smooth and must fit tightly together; mortice and tenon and doweled joints should have clearances of less than 026mm. Light abrasion with a medium grade abrasive paper is recommended as this will normally give a good finish, particularly where the surface grain has been damaged by sawing or planing. Certain hard woods having a natural oil content, such as teak should be wiped
before bonding with a cloth moistened with a solvent such as turps.

Application of Adhesive
CC PVA should be used at temperatures between 5 deg and 30 deg C. Wood which has been stored
in a cold or humid environment should be allowed to condition in the workshop atmosphere before bonding.

One of the surfaces to be bonded should be coated with an even film of adhesive, by brush, roller extruder or roller coating machine. When bonding dowels or tenons It is preferable to apply CC PVA the hole or to the mortice so that wet adhesive is carried into the socket when assembly takes place.

Assembly
The parts to be bonded should be brought together whilst the adhesive is still wet. The maximum open assembly time depends on the substrate porosity and the ambient temperature. but generally falls within the range of 10 to 26 minutes. After assembly, light pressure must be must be maintained on the bond line during the adhesive's initial setting period, using conventional methods such presses vices, jigs cramps or dead loads.

Setting Time
The rate of development of joint strength depends on such variables as ambient temperature and
humidity. bonding pressure, and substrate type, porosity, temperature and water content As a guide, beech substrates at 5deg C should be maintained under load for at least 12 hours, whereas at 20 deg C and 65% relative humidity the time under load is reduced to little more than 1 hour.

Colour & Form
A white aqueous emulsion drying to opaque film.

Packaging
1KG, 5KG

Storage
FREEZE THAW STABLE WITH A SHELF LIFE OF ONE YEAR.
PROTECT FROM FROST.

Coverage
8-9 SQUARE MTR PER LTR ON MOST SURFACES.

Universal PVA Health & Safety & Technical Data Sheet
Size (prices exclude VAT)
25 Litres - £55.94
5 Litres - £13.29
1 Litre - £5.41


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