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Siniat  |  SKU: PS171050

Siniat Smartmix Jointing Compound - 20kg


£32.78 Ex VAT
£39.34 Inc VAT
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This pre-mixed jointing compound is suitable for jointing plasterboards and ready-to-use. Air drying in 12 - 48 hours and easy to sand to a smooth finish. 

Apply the Smartmix to the joint to embed the joint tape, and then overcoat to fully fill the joint. Ensure product is dry before applying the second coat. Apply a third coat for optimum finish. Sand down using 120 grit sandpaper when fully dry.

  • Complies with EN 13963: 2005 type 2A 
  • Pre-mixed for immediate use
  • Easy to sand
  • Low shrinkage
  • Easy for DIY use
  • Weight: 20kg

Data Sheets & Guides:

Siniat Internal Wall Finishing Guide

Siniat Smartmix Safety Data Sheet

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  • Size
    20kg
  • Coverage (m²)
    50
  • Reaction to Fire
    A2-s1, d0

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What is Plasterboard Adhesive?

Plasterboard adhesive, or drywall adhesive, is a product used to attach plasterboard to surfaces such as masonry walls, and ceilings. Typically made from a blend of polymers, resins, and bonding agents, it ensures a secure bond, often applied in blobs or lines on the back of the plasterboard or substrate. This adhesive reduces the need for mechanical fixings, aids in sound and thermal insulation, and minimises thermal bridging. Types vary for specific applications, including high-moisture environments or rapid setting.

What is Finish Plaster?

Finish plaster is a fine, smooth plaster applied as the final coat on walls and ceilings to create a smooth, decorative surface ready for painting or wallpapering. It is typically used after a base or undercoat plaster has been applied, ensuring a level surface. Finish plaster is formulated to provide a hard, durable finish and can be troweled to achieve a polished look. 

What is Plasterboard Sealer?

Plasterboard sealer, also known as drywall sealer or primer, is a specialised coating applied to plasterboard surfaces before painting or wallpapering. Its primary function is to seal the porous surface of the plasterboard, providing a uniform base that improves the adhesion and appearance of subsequent finishes. The sealer helps to prevent uneven absorption of paint or wallpaper adhesive, reducing the risk of blotches or inconsistent coverage. 

What is Jointing Compound?

Jointing compound is used to fill and smooth the joints between plasterboard panels. Applied over joint tape, it creates a seamless, even surface by covering gaps, screw holes, and other imperfections. Jointing compound comes in various forms, including ready-mixed or powder that needs mixing with water.