Sikaflex PRO-3 Purform

Professional Polyurethane Sealant for Construction Joints

Sikaflex PRO-3 Purform is a monocomponent elastic polyurethane sealant specifically engineered for professional sealing of movement joints, expansion joints and construction applications in building and civil engineering. This high-performance sealant combines elasticity with durability to meet the demanding requirements of modern construction projects.

Key Features & Benefits

Superior Elasticity & Movement Absorption

The permanent elasticity of Sikaflex PRO-3 Purform allows it to absorb structural movements, thermal expansion and settlement without compromising the watertightness of the seal. This flexibility ensures long-term performance even in challenging environmental conditions.

Exceptional Adhesion & Durability

Excellent adhesion to common construction materials including:

• Concrete and mortar
• Aluminium and steel
• Various plastics

This strong bonding guarantees durable seals that maintain their integrity under demanding service conditions.

Weather & UV Resistance

Sikaflex PRO-3 Purform withstands:

• Extreme temperature variations
• UV radiation exposure
• Harsh outdoor weather conditions

High Chemical Resistance

The advanced formulation provides excellent chemical resistance, making it suitable for diverse construction and civil engineering applications where chemical exposure may occur.

Applications

Ideal for professional contractors, construction companies, rehabilitation specialists and certified applicators working on:

• Building joint sealing
• Civil engineering projects
• Movement and expansion joints
• Structural sealing applications

Professional Quality Assurance

Backed by Sika's international reputation and over a century of construction material expertise, Sikaflex PRO-3 Purform meets rigorous European and national standards with full technical documentation and certified laboratory testing.