Product Data Sheet Safety Data Sheet Show all documents

Everbuild Tecnic® Hybriflex 25LM

An advanced hybrid polymer building sealant

Everbuild Tecnic® Hybriflex 25LM is a one part, low modulus, chemically curing sealant combining the best qualities of silicone and polyurethane technologies. It is specifically designed for adhering most common building surfaces to each other and themselves.

  • High bonding strength.
  • Interior and exterior use.
  • Can be applied to damp surfaces.
  • Totally waterproof & weatherproof.
  • Quick curing.
  • Overpaintable if required.
  • Permanently flexible.
  • Resistant to chemicals & petrol (10 % dilute acids/alkalis, most solvents).
  • Excellent primer less adhesion to most surfaces, including metals, most plastics, glass, concrete, plaster, plasterboard, polyester, perspex, glass, wood, enamel, painted surfaces etc.
ConsistencyPasteCompatibility with paints Water Based: Yes (test compatibility) Solvent Based: No (with alkyd paints)
Product Data Sheet Safety Data Sheet Show all documents

Usage

Sealing most applications imaginable. For examples:
  • External and internal perimeter pointing around doors and windows, especially in mobile structures such as caravans and sealing vertical expansion joints, jointing cladding panels and bonding difficult materials such as most plastics, metals and fiberglass.
  • Any application requiring high performance, durable sealing and bonding of joints. 
  • Applications where resistance to chemical spillage is required.
 

Advantages

  • High bonding strength.
  • Interior and exterior use.
  • Can be applied to damp surfaces.
  • Totally waterproof & weatherproof.
  • Quick curing.
  • Overpaintable if required.
  • Permanently flexible.
  • Resistant to chemicals & petrol (10 % dilute acids/alkalis, most solvents).
  • Excellent primer less adhesion to most surfaces, including metals, most plastics, glass, concrete, plaster, plasterboard, polyester, perspex, glass, wood, enamel, painted surfaces etc.
ConsistencyPasteCompatibility with paints Water Based: Yes (test compatibility) Solvent Based: No (with alkyd paints)

Packaging

380 ml Cartridge

Colour

White

Product Details

Sustainability / Certifications / Approvals

APPROVALS / STANDARDS

  • Meets the requirements of ISO11600 F25LM.
  • UKCA and CE Marked to EN15651-1 class F25LM.
Product Information

Chemical Base

STP

Shelf Life

12 months from date of manufacture

Storage Conditions

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

Density

1.45 - 1.55 g/cm3
Technical Information

Shore A Hardness

20-30 (ISO 868 - 3 seconds)

Secant Tensile Modulus

~ 0.25 N/mm2 (ISO8339)

Elongation

>400 % (ISO8339)

Movement Capability

25 % movement accommodation

Elastic Recovery

>70 % (ISO7389)

Service Temperature

-40 to +100 °C

UV Exposure

Good

Joint Design

Joint Dimensions - For maximum movement accommodation, it is recommended that:

1. The sealant joint depth should be no less than 5 mm.

2. Joint depth should be 5 mm for joints up to 10 mm wide.

3. Joints above 10 mm in width should be half the width in depth up to 20 mm and minimum 10 mm for wider joints.

Joint depth may be adjusted to the correct size using EVERBUILD JOINT BACKER ROD or BOND BREAKING TAPE in cases where there is not enough depth to use Backer Rod.

Joint Width Calculation - Joint widths are calculated as in BS6213: Width = (M x 100)/F + M

Where M = movement and F = movement accommodation factor.

Application

Application Information

Ambient Air Temperature

+5 to +35 °C

Substrate Temperature

+5 to +35 °C

Curing Time

0-2 mm / 24 hour at 23 °C and 50 % RH

Skin Time

Skin formation @ 23 °C and 50 % RH is 20-45 minutes.
Consumption

Consumption

Joint Size (mm)

Litre per metre run

Metres per 380 ml Cartridge

5 x 5

0.025

15.20

5 x 10

0.050

7.60

10 x 10

0.100

3.80

15 x 100.1502.53
20 x 100.2001.98
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 for application 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. However, concrete must be sealed using Sika® Primer 3-N. If in doubt consult Technical Services. If Primer is desired on non-porous substrates use Sika® Aktivator-205.

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