PUMAST 600 is an highly elastic, low modulus polyurethane sealant, with good UV resistance and excellent adhesion to cons.mtrial
PUMAST 600 is an 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.
Colours : White, grey
Chemical basis : Polyurethane
Viscosity : Non sag
Specific gravity : Apr. 1,32 gr / cm³
Inflammability point : > 60°C
Freezing point : < - 10°C
Curing speed at : 25°C and
50 % R.H 2mm after : 24 hrs
Skin formation : Apr. 3 hours
Hardness Shore A : Apr. 25
Elongation at break : Apr. % 600
E Modulus : 0,22 Mpa
Recovery from deformation : 85 %
Shrinkage 5 %
Admissable joint movement : ±25 %
Temperature resistance : - 30 to 80°C
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, aluminium, wood, ceramic tiles, rigid plastics etc. Surfaces Preparations 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.
The sealant should not adhere to the joint bottom; the use of a joint backing rod is recommended. It is advisable to effect preliminary adhesion tests. If the joint has a concrete protective system the compatibility of the joint coating with the sealant has to be verified.
Application of PUMAST 600 is carried out by a suitable pres-out gun.
Approx. 1.30 kg/lt
5 mm x 5 mm 32 g / mtul
10 mm x 10 mm 130 g / mtul
15 mm x 10 mm 195 g / mtul
20 mm x 10 mm 260 g / mtul
25 mm x 15 mm 485 g / mtul
600 ml sausages (20 pcs per carton)
Cleaning of tools
Clean tools with polyurethane solvent
after use. Do not allow material to
cure in tools.
Storage and Shelf life
PUMAST 600 must be stored in original containers and under dry condition at 5°C to 25°C.
Under these conditions shelf life is 12 month.