PVA BONDING AGENT FOR CEMENT MIXES AND CONCRETE REPAIRS.
POLYBOND PVA is a single component PVA based, white viscous liquid, specially formulated for use as a multi-purpose adhesive and a bonding agent for cement mixes and as an admixture for mortars.
POLYBOND PVA is ideally designed for use as multipurpose adhesive in cement base mixes and as primer and integral bonding agent for concrete. Ideal for priming surfaces prior to plastering or painting. Use as an admixture in cement/sand and granolithic screeds.
Single component, easy to use.
High bond strength provides excellent adhesion when used as bonding agent for cement based mixes.
No chloride admixtures.
Improves renders and mortars durability. Color go to clear when dries. Concentrated which make it economical.
|Appearance:||white viscous liquid|
|Speciﬁc gravity @25˚C:||1.0-1.05|
|Stability:||stable in alkaline
|Compatibility:||compatible with all types of Portland cement|
METHOD OF USE:
– Substrate preparation:
Where POLYBOND PVA should be used, the substrate should be sound, clean and free contamina- tion. Surface laitance should be removed by light scrabbling or grit blasting.
General purpose bonding agent
Strong adhesive for many substrates such as bricks, carpets, stone, tiles and wood may types.
Apply a thin ﬁlm of POLYBOND PVA over the prepared sides to be adhered together, allow coming thick and tacky, then press parts to each other and allow curing for approximately one day.
– Cement screeds and plasters bonding agent: Porous surfaces should be sealed using diluted POLYBOND PVA (1part POLYBOND PVA to 4 parts water) which should be brushed vigorously into the prepared surfaces making sure to ﬁll all pores and voids and allow it to get dry. Apply Diluted POLY- BOND PVA (1 part POLYBOND PVA to 1 part water) to the sealed surface using a brush. Make sure to apply the plaster or repair mortar whilst the applied coating is still tacky
– Sealer coat and dust prooﬁng:
Diluted POLYBOND PVA (1 part POLYBOND PVA to
4 parts water) should be applied by brush over the target surface and allowed to dry.
Note: for porous surfaces other coat should be applied to assure appropriate seal.
– Admixture in cement/ sand screeds:
Use it as an admixture in cement/ sand screeds in both light trafﬁc and heavy trafﬁc areas. Supposed mixes is as the following:
|COMPONENT||LIGHT TRAFFIC||HIGH TRAFFIC|
Prime the prepared surface with diluted POLYBOND PVA(1 part POLYBOND PVA to 4 parts water).
The dry components should be mixed together.
Add water to the mix to achieve a semidry mix and then add the POLYBOND PVA and mix, more water could be added to achieve the required workability. Lay the mix on the tacky primed surface, tamp it and smooth it using trowels.
Bonding agent: 16m2 when diluted 1 to 1
Sealer coat: 25m2 when diluted 1 to 4
Admixture: 20-25 L/100Kg Cement depending on use.
All tools should be cleaned immediately after ﬁnish- ing with water. Hardened materials may be cleaned mechanically.
POLYBOND PVA is available in 5 litre and 200 litre drums.
POLYBOND PVA shelf life is 12 months if stored at
temperature between 5˚C and 50˚C.
If these conditions are exceeded, POLYWED techni- cal department should be contacted for advice.
– Health and Safety:
POLYBOND PVA is non-toxic. Avoid skin and eye contact. Rubber gloves and eye protections should be worn all the time. The use of barrier cream is recommended on exposed areas of the skin.
POLYBOND PVA is non ﬂammable
FOR MORE INFORMATION, PLEASE CON- TACT PHONENO.00966 2 6204224