Joint Sealants and Mastics / Polyurethane Based, One Component, Joint Sealant
PUMAST 600
Description
PUMAST 600 is a highly elastic, low modulus polyurethane sealant, with good UV resistance and excellent adhesion to typical construction materials. PUMAST 600 is one component and cures with moisture to form a flexible sealant which can be overpainted after curing is finished. The sealant is non sagging, highly thixotropic, easy smoothing and has good workability. It is a perfect product for all types of static and dynamic expansion joints of structural members.
Fields of Application
- PUMAST 600 is designed for civil and industrial movement, expansion, control and dilatation joints in architectural and heavy construction.
- To be used as a sealant between concrete, mortar, brickwork, natural and synthetic stone, metal, steel, aluminum, wood, ceramic tiles, rigid plastics etc.
- It can be used in drinkable water tanks safely.
Features and Benefits
- Very elastic.
- Protects elasticity between -40 °C to +80 °C.
- One component. Easy to apply.
- Cures with the humidity in the air.
- It can be used in drinkable water tanks safely.
- No need primer before PUMAST 600 for many surfaces.
- Provides excellent adhesion on concrete, metal, wood and other surfaces.
- Resistant to chemicals.
Application Procedure
Preparation of Substrate
All surfaces must be perfectly clean, dry and free from dust and grease. Where necessary apply a coating of primer on the joint walls. Use PU 101 A for porous (absorbing) surfaces like concrete, mortar etc.
Application Method
The sealant should not adhere to the joint bottom; the use of a joint backing rod is recommended. The width and depth of the joint must not be less than 5 mm. In manual applications, the material is places in an application gun and injected into the joint without causing the formation of any air bubbles.
Consumption
1,15 kg/lt
For example; needed 115 gr/m for 10 mm x 10 mm joint.
Package
600 ml sausages - 20 pcs/box
280 ml cartridge - 25 pcs/box
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