Multipurpose bonding agent & admixture
A general purpose PVA bonding agent, primer, sealer and admixture. Polyweds PVA bond is a medium viscosity, polyvinyl alcohol stabilized, externally plasticised, vinyl acetate homopolymer that is designed specifically for use in the building industry as a general-purpose bonding agent, and additive for concrete and plasters and as a multi-use adhesive.
1. As an admixture for mortar/screeds/renders. As a bonding agent for screeds/renders to difficult substrates.
2. As a primer/sealer in tiling applications.
3. As a general-purpose adhesive for wood, cork, paper, etc.
1 Liquid Based Component
1- Where Bond PVA should be used, the substrate should be sound, clean and free contamination. Dilute the bond by Adding water (1-part Bond PVA to 4 parts water)
2- Using an electronic mixer, mix the diluted water for 3 minutes. more water could be added to achieve the required workability.
3- Add the diluted bond to the cementitious mixture and mix very well
4- Mix well once again with an electronic mixer for 3 minutes.
5- Application:
5a. Cement screeds and plasters bonding agent: Porous surfaces should be sealed using the bond, by brushing vigorously unto the prepared surfaces making sure to fil all pores and voids and allow it to get dry. Make sure to apply the plaster or repair mortar whilst the applied coating is still tacky.
5b. Sealer coat and dust proofing: Diluted Bond PVA (1part Bond 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.
5c. Admixture in cement/ sand screeds: Use it as an admixture in cement/ sand screeds in both light traffic and heavy traffic areas.
Compatibility: all types of Portland cement
Stability: Stable in alkaline conditions
PH: 4-5
Specific gravity at 25˚C :1.0-1.05
This original sealed container has a shelf life of 12 months provided it is stored clear of ground in a dry shaded place below 25°C
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