A waterproof primer; sealer and bonding agent to improve, adhesion strength and long-term durability of the joint between the adhesive and any surface substrate. It can be applied to gypsum plaster, old / worn concrete; sand cement screeds and render to reduce porosity, surface dusting and moisture absorption whilst improving initial tack and enabling adhesives to achieve a secure and lasting key.
Conforms to :
- Stabilises porous surfaces
- Improves bond to timber/vinyl surfaces
- Reduces surface suction
- Improves open time of adhesive
- Used as a screed enhancing admixture
SURFACE PREPERATION – Ensure the application area is thoroughly dry and in a sound and stable condition, the surface area must be exempt from contaminants that could hinder adhesion including dust, oils and grease. All laitance and surface treatments must be withdrawn. Surfaces must be roughed up by mechanical scabbing to enhance the key. All surfaces should be clean from dust and thoroughly clean before the primer is applied. Any underfloor heating needs to be switched off more than 48 hours before and after application. When applying RAD Tiling Tilers Primer onto calcium sulphate screed the preparation following should be considered as should the preparation above. It’s very important to make sure that the calcium sulphate screed are ensured, dry and below 75%RH. These screeds are also prone to surface laitance and therefore should be mechanically abraded to remove the weak surface. APPLICATION of product should be applied using a brush or roller then scrubbed thoroughly into the surface to avoid pooling. Allow too fully dry. For multi-coats, make sure that each coat dries before you apply another coat. POROUS SUBSTRATES- RAD Tiling Tilers Primer should always be diluted before use by this ratio – 1st coat: 3 parts water/1 part primer, 2nd coat: 1 part water/1 part primer. Some subfloors may require a 3rd coat if the material is very absorbent. Under ideal drying conditions additional coats will be ready to be received after 1-2 hours. NON-POROUS SUBSTRATES – 1 coat neat. STORAGE- This product must be stored in bottles that are unopened, in an environment that is frost free out of direct sunlight. Avoid any frost. A temperature between 5*C and 25*C. SHELF LIFE- Under the storage described above this product has a shelf life of 12 months. All tiling should follow the correct British/European standard and incorporate movement joints as specified therein. All products are manufactured in a plant whose quality management system is certified/registered as being in conformity with BS EN ISO 9001.
If you would like to check availability for these items feel free to call us, we can check if our suppliers have stock/when they will be restocking. We will contact you if the tiles you have ordered are currently out of stock.