VivalFlex PU40 | Polyurethane sealant for concrete

Polyurethane sealant for industrial floors

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Description

Characteristics

Application

For sealing, insulation, compaction of internal and external expansion joints, gaps, joints, joints exposed to mechanical effects, thermal expansion, vibration and deformation (according to ISO 11600).

The sealant has excellent adhesion without the use of a primer to most bases: concrete, terracotta, anodized aluminum, metals, wood, etc.
The product is manufactured at a high-tech plant in France according to ISO 9001 and ISO 14001 standards.

Shore hardness	A 35 – 40 (DIN 53 505)
Modulus of elasticity at 100%	0.35 - 0.45 MPa (ISO 8339)
Elongation at break	>750% (ISO 8339)
Tear resistance	0.60 MPa (ISO 8339)
Elasticity	> 70% (ISO 7389)
Working deformation of the seam	25%
Film formation time	45 minutes (23°C, 50% relative humidity)
Polymerization speed	≥ 3 mm after 24 hours (23°C, 50% relative humidity)
Application temperature	+ 3°C ≤ T ≤ + 40°C
Operating temperature	– 40°C ≤ T ≤ +80°C
Shrinking	≤ 10% (ISO 10563)

If necessary, use a polyurethane-based primer;
After the primer has dried, insert a sealing cord made of foamed polyethylene into the seam , which does not have adhesion to the sealant.
Try not to damage the cord;
Use masking tape to protect the edges of the seam from contamination.
Apply the sealant in one pass for small-width seams, or in three passes for large-width seams, with the first two passes along the seam walls and the last one in the middle;
Smooth the surface of the sealant with clean water;
Immediately remove the masking tape;
Clean the tool and contaminated surfaces with a solvent until the sealant has completely polymerized.
In the case of polymerization, cleaning can only be done mechanically;
After complete polymerization, it can be painted.
We recommend using water-based paint (acrylic or vinyl).
Test test areas to determine the possibility of applying the paint.
Movements in the seam can lead to cracks in the paint;
When gluing, it is possible to apply the sealant pointwise.
Heavy materials weighing more than 8 Kg/m2 must be supported during gluing for 8-15 hours.