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07

Joints, sealing and waterproofing

MSP Sealant, joint reinforcement and waterproofing to AS 3740.

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MSP Sealant 50 mm fibreglass tape AS 3740

Overview

Use Thermasheet MSP Sealant at board joints, select joint reinforcement to suit the substrate and finish, and treat corners, penetrations and changes of plane.

Key points

  • Masonry walls, tiled finish: fill and flush joints with MSP Sealant
  • Framed walls, render or microcement: also use 50 mm fibreglass reinforcing tape over joints
  • Seal all wall/floor junctions with a bond-breaker tape or sealing band (NCC and AS 3740)

Installation steps

  1. 1

    CLEAN AND DRY

    Ensure joint faces are clean and dry.

    Joint treatment to a Thermasheet-lined shower area
    Joint treatment to a Thermasheet-lined shower area
  2. 2

    APPLY SEALANT

    Apply a continuous bead of Thermasheet MSP Sealant to the joint or interface.

  3. 3

    BRING BOARDS TOGETHER

    Bring boards together, then remove or tool off excess sealant.

  4. 4

    REINFORCE

    Where required, reinforce joints with compatible 50 mm fibreglass tape.

  5. 5

    TREAT DETAILS

    Treat screw and washer heads, penetrations and changes of plane as required.

  6. 6

    WATERPROOF

    Apply a compliant waterproofing membrane where required by AS 3740 and the project specification.

Products used in this guide

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