Product Data Sheet Safety Data Sheet Show all documents
Everbuild Tecnic® Puraflex 40

Everbuild Tecnic® Puraflex 40

High modulus polyurethane sealant and adhesive

Everbuild Tecnic® Puraflex 40 is a high modulus, one component, PU sealant and adhesive which adheres strongly to most substrates. Provides excellent mechanical resistance (Shore A 30-40), resistance to most common chemicals and can be overpainted when cured.

  • Bonds to concrete, wood, metal, aluminium, polyester, glass, uPVC, stone, ceramics, etc.
  • Over paintable with gloss and emulsion.
  • Good sea water resistance.
  • Can be over painted with oil and latex paints.
  • Specifically designed as an easy flow flooring grade for all concrete saw cuts and floor slab expansion joints, where abrasion resistance is required.
  Coverage Joint size in mm Litre per metre run Metre per tube 5 x 5 0.025 12.0 5 x 10 0.050 6.0 10 x 100.13.015 x 100.152.020 x 100.21.5                                                                                                                                                                                                                                          Shrinkage Maximum 10 % Elasticity Modulus 100 % 0.60 N/mm² Paintability Water Based - Yes
Solvent Based - Trial Necessary
Product Data Sheet Safety Data Sheet Show all documents

Usage

  • Sealing and bonding metal panels and trim.
  • Expansion joint sealing in concrete panels and floor joint.
  • Sealing in applications subject to vibration and mechanical abrasion.
  • Multitude of sealing and bonding applications in the construction and engineering markets.
  • Bonding in container fabrication.
  • High traffic floor joints such as those found in garage forecourts, warehouse, factory floors, sports arenas, shopping centres etc.

Advantages

  • Bonds to concrete, wood, metal, aluminium, polyester, glass, uPVC, stone, ceramics, etc.
  • Over paintable with gloss and emulsion.
  • Good sea water resistance.
  • Can be over painted with oil and latex paints.
  • Specifically designed as an easy flow flooring grade for all concrete saw cuts and floor slab expansion joints, where abrasion resistance is required.
  Coverage Joint size in mm Litre per metre run Metre per tube 5 x 5 0.025 12.0 5 x 10 0.050 6.0 10 x 100.13.015 x 100.152.020 x 100.21.5                                                                                                                                                                                                                                          Shrinkage Maximum 10 % Elasticity Modulus 100 % 0.60 N/mm² Paintability Water Based - Yes
Solvent Based - Trial Necessary

Packaging

300 ml cartridge

600 ml foil

Colour

White, Black, Grey

Product Details

Sustainability / Certifications / Approvals

APPROVALS / STANDARDS

  • CE / UKCA Marked to types F EXT-INT CC and PW EXT-INT CC
  • Solvent free (EMICODE EC 1PLUSR Very Low Emissions).
  • Passes LEED EQc 4.1, SCAQMD, Rule 1168 and BAAQMD, Reg 8, Rule 51.
Product Information

Chemical Base

Polyurethane with a monomeric diisocyanate content of less than 0.1 % by weight. Therefore, users do not require training on the safe use of diisocyanates according to Commission Regulation (EU) 2020/1149.

Shelf Life

15 months from date of manufacture

Storage Conditions

Store in cool dry conditions between +5 °C and +25 °C

Density

Approx 1.35 g/cm3
Technical Information

Shore A Hardness

30 to 40

Movement Capability

Flexibility +/- 25 %

Elastic Recovery

~85 % (100% elongation at +23 °C ISO7389)

Service Temperature

-40 ˚C to 80 ˚C

Chemical Resistance

Average. Mild acids/bases at <10 % concentration

Joint Design

Max joint depth should should be half joint width. If deeper, use EVERBUILD® FIX AND FILL FOAM or EVERBUILD® JOINT BACKER ROD.
Furthermore, ensure that the joint design only permits adhesion to two surfaces, as three-sided adhesion will impair flexibility. BOND BREAKING TAPE, EVERBUILD® BACKER ROD OR CURED EVERBUILD® FIX AND FILL will remove third-side adhesion.
Reference should be made to the recommended joint ratios.
Joint range of 10 - 35 mm.

Application

Application Information

Ambient Air Temperature

+5 ˚C to +40 ˚C, minimum +3 °C above dew point temperature

Curing Rate

~4 mm per 24 hours (+23 °C and 50 % RH)

Skin Time

~50 mins at 23 °C and 50 % RH
Application steps

SUBSTRATE PREPARATION

All surfaces must be clean, dry and dust free. All loose or flaking surface coatings, and old sealant and mastic joints, should be removed before application. Glass, metal and aluminium should be cleaned with a proprietary solvent cleaner prior to application for optimum adhesion. When using solvents, always ensure adequate ventilation. Avoid heat, sparks and open flames. Observe and follow all precautions listed on the solvent container label.
It is not recommended to apply to surfaces that are below 5 ˚C as it is impossible to guarantee a dry, frost-free surface at these temperatures. It is unlikely that priming will be required. Concrete must be sealed using a primer. If in doubt consult Technical Services.

                                                                                                                                                                             

Primer

On porous substrates, like concrete, use Sika® Primer - 3N. Use Sika® Aktivator -205 for non-porous substrates.

CLEANING OF TOOLS

Clean tools and any excess sealant with white spirit.  Once cured remove mechanically.

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