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Sikaflex®-423 PowerCure - Sealant

Verified by manufacturer over a year 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

Specification data - Polyurethane (PUR) construction joint sealants

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

Embodied carbon

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

0 kg·CO₂e/kg

Self declared

Recyclability

0

Recycled content

As defined in clause 7.8 of BS EN ISO 14021

0 %

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