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Sikaflex®-423 PowerCure - Sealant

Verified by manufacturer 6 months ago

Sika Limited

An accelerated polyurethane sealant for floor joints and civil engineering applications.

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+44 (0)1707 394444 Website

Application

The product is used for the following horizontal and vertical interior and exterior joint sealing applications:

  • Warehouse and production floor areas.
  • Sewage treatment plants.
  • Tunnels.
  • Car park decks.
  • Pedestrian and traffic areas.
  • Sea walls.

Description

Sikaflex®-423 PowerCure is a one-part, accelerated, 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.


Features and benefits:

  • High movement capability: ±25% (ISO 9047).
  • Fast development of mechanical properties.
  • Very good mechanical resistance.
  • Very good resistance to specific chemicals.
  • High resistance to weathering.
  • Good durability.
  • Non-staining to a wide range of substrates.
  • Monomeric diisocyanate content <0.1%: no user safety training needed (REACH restriction 2023, Annex XVII entry 74).
  • Bubble-free curing.
  • Good adhesion to many construction materials.

General information

Color

Grey

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

CAWS

E40/530 Sealant

E40/530 Sealant

SKU Code

713122

Specification data - Polyurethane (PUR) construction joint sealants

Classification data

Standard

To EN 15651-1 and EN 15651-4.

Material

One-part polyurethane.

Colour

-

Manufacturer guidance

Consult manufacturer and insert requirements.

Density

To ISO 1183-1, ~1.30 kg/L.

Tensile Modulus

To ISO 8339, ~0.65 N/mm² at 100% elongation (+23°C), ~1.00 N/mm² at 100% elongation (−20°C).

Manufacturer guidance

Secant tensile modulus.

Elongation at break

To ISO 37, ~800%.

Accessories

None.
Sika® PowerCure Dispenser.

Sustainability data

Contains Red List materials

No

Country of material origin

Germany

Country of product manufacture

Germany

Material

Polyurethane
Carbon dioxide equivalent

Carbon dioxide equivalent, as defined in BS EN 15804

Self-declared

Stage
Normalised unit (kg CO₂ eq/kg)
Declared unit (kg CO₂ eq/kg)
Stage:A1–A3 ('Production stage')
Normalised unit : 4.79 (kg CO₂ eq/kg)
Declared unit : 4.79

Lower emissions

Recyclability

0

Recycled content

As defined in clause 7.8 of BS EN ISO 14021

0 %

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