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SIKAFLEX PRO-3 PURFORM

Verified by manufacturer over a year 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

Product range

Sealant
Sealing & Bonding / Civil Engineering & Floor Joints

Specification data - Polyurethane (PUR) construction joint sealants

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

Embodied carbon

A1-A3 (production stage) as defined in BS EN 15804

0 kg·CO₂e/kg

Recyclability

0

Recycled content

As defined in clause 7.8 of BS EN ISO 14021

0 %

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