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SIKAFLEX PRO-3 PURFORM

Verified by manufacturer 5 months ago

Sika Limited

Sikaflex® PRO-3 Purform® is a 1-part, moisture curing, elastic polyurethane sealant. It seals many kinds of joint configurations in floors and civil engineering structures.

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+44 (0)1707 394444 Website

Application

Horizontal and vertical interior and exterior joint sealing applications:

▪ Food industry

▪ Cleanrooms

▪ Warehouse and production floor areas

▪ Sewage treatment plants

▪ Tunnels

▪ Car parks

▪ Pedestrian and traffic areas 

Description

Sikaflex® PRO-3 Purform® is a 1-part, moisture curing, elastic polyurethane sealant. It seals many kinds of joint configurations in floors and civil engineering structures.


The elasticity is maintained over a wide temperature range and high mechanical and chemical resistance provides good durability.

  • High movement capability: +/-25 % (ISO11600) and ±50 % (ASTM C920)
  • Fast development of mechanical properties
  • High mechanical and chemical resistance
  • High resistance to weathering
  • Good durability
  • Non-staining to a wide range of substrates
  • Very low monomer content: no user safety training needed (REACH restriction 2023, Annex 17 entry 74)
  • Bubble-free curing
  • Good adhesion to most construction materials

General information

Color

Black

Grey

White

Finish

Smooth

Material

Polyurethane

Shape

Formless

Length

320 mm

Width

50 mm

Height

50 mm

Uniclass

Pr_30_31_76_65 Polyurethane (PUR) construction joint sealantsPrimary

SKU Code

694153, 693977, 694308

Product range

Sealant
Sealing & Bonding / Civil Engineering & Floor Joints

Specification data - Polyurethane (PUR) construction joint sealants

Classification data

Product Reference

Sikaflex® PRO-3

Standard product features

Chemical base:

i-Cure® Technology polyurethane.

Technical information:

  • Density: ~1.35 kg/L.
  • Service temperature: -40°C to +70°C.
  • Application temperature: +5°C to +40°C.
  • Shore A Hardness (ISO 868): ~37.
  • Tensile Modulus at 23°C (ISO 8339): ~0.6 N/mm² at 100% elongation.
  • Tear Propagation Resistance (ISO 34): ~8.0 N/mm.
  • Movement Capability (ISO 9047): ± 25%.
  • Elastic Recovery (ISO 7389): ~90%.
  • Skinning time: ~60 minutes.
  • Curing rate: ~3.5 mm/ 24h.
  • Sag flow (ISO 7390): 0 mm.
  • Elongation at break (ISO 37): ~600%.

Product Options

Primer:

Sika Primer 3N Moisture Resistant Primer (specified separately).

Sustainability data

Contains Red List materials

No

Country of material origin

Switzerland

Country of product manufacture

Switzerland

Material

Polyurethane

A1–A3 ('Production stage')

Normalized unit

4.79 kg CO₂ eq/kg

Declared unit

4.79 kg CO₂ eq/kg

Self-declared

Lower emissions

Recyclability

0

Recycled content

As defined in clause 7.8 of BS EN ISO 14021

0 %

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