Siniat mastablock
Description
mastablock is a pink plaster based setting cement designed specifically for back-blocking ceiling joints in accordance with Australian Standard 2589.1. Back-blocking reinforces the joint, minimises deformation and possible cracking that may occur due to stresses from building movement. mastablock has a working time of 3.5 hours and sets in 4 hours allowing plenty of time to complete back-blocking and to maximise use of a single gauge. Great for skillion roofs as ceiling joints can be back-blocked progressively, working from below the board. mastablock mixes easily by hand or electric mixer to a smooth gauge providing a strong bond between back-block and plasterboard lining, strengthening joints and minimising joint distortion and the possibility of cracking. mastablock is pink for easy identification. Benefits
- Strengthens joints
- Minimises joint cracking
- Long setting time
| Specifications | Compounds Description | Product Weight (kg) |
|---|---|---|
| QLD Specs | MastaBlock Specialty Cement | 20.00 |
| NSW Specs | MastaBlock Specialty Cement | 20.00 |
| VIC Specs | MastaBlock Specialty Cement | 20.00 |
| TAS Specs | MastaBlock Specialty Cement | 20.00 |
What is back-blocking?
When installed in accordance with Siniat installation guidelines, the finished surface of all Siniat plasterboard accepts most types of decorative finish: emulsion or oil based paints, stipples, enamels, textured coatings and wallpapers. Matt finishes give the best appearance; gloss or sheen finishes tend to highlight any surface irregularities, as will harsh or glancing light. In order to obtain the best finish to the walls, Siniat recommends the following: Lay down the nap of any scuffed areas using MastaFinish, MastaLite or MastaGlide jointing compounds. The surface should be free of dust and other foreign matter. Ensure that the joint treatment is thoroughly dry before applying the sealer. Always seal over jointed and unjointed areas. Use roller application for paint. Overworking of sealant coat on jointed areas may cause paint to lift. Roller application applies uniform texture over the entire surface. Use only the best quality paints and other finishes. Use of sealers or undercoats that are water-based is preferred to reduce the possibility of raising the paper linerboard nap. Lightly sand between coats if nap is raised. Apply finishes in strict accordance with manufacturers’ instructions.
BIM FILES
Siniat has a large library of CAD details for all types of systems.
