Everbuild Everflex 335 Construction Silicone 295mL – Bulk Buy

Everbuild Everflex 335 Construction Silicone 295mL

Tensile Modulus @ 100% Elongation 0.25 Mpas  ASTM D412 (die C) Tensile Adhesion Modulus At 100% Elongation 0.38 MPa  ISO 8339 (glass substrates) Tensile Adhesion Strength At Break 0.55 Mpas  ISO 8339 (glass substrates) Tensile Elongation At Break 200 %  ISO 8339 (glass substrates) Peel Adhesion Strength 6 KN/m ASTM C 794 Volume Shrinkage 8% ISO 10563

APPLICATION INSTRUCTIONS

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. Improve adhesion by wiping surface with EVERFLEX PVC SOLVENT CLEANER (pvc) EVERFLEX GLASS CLEANER (glass) or white spirits (painted surfaces). Priming is generally not required, although we always advise testing small areas prior to use.

APPLICATION METHOD / TOOLS

Joint design should be as follows:

Minimum width: 6mm. Movement capacity will be impaired if the depth of the joint is greater than the width. For maximum movement accommodation, it is recommended that:

The joint depth should be no less than 5mm

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

Joints above 10mm in width should be half the width in depth up to 20mm and minimum 10mm for wider joints
For deep joints, reduce depth by using EVERBUILD FIX AND FILL FOAM or a suitable joint backer rod.
All joints should be designed so that the seal is placed in a position which does not retain water or form a water trap. Triangular fillets should be no less than 12mm across the face and should be finished with a flat or convex face.
Cut the tip of the cartridge taking care not to damage the thread. Apply nozzle and cut at an angle of 45° with an opening slightly larger than the gap to be sealed. Apply using a standard sealant gun. Best results will be obtained by keeping an even pressure on the trigger and keeping the gun at a constant angle to the surface being sealed. To ensure a proper bond, always smooth the sealant down with a spatula or piece of wood wetted with linseed oil or white spirits. An improved joint appearance can be achieved by placing masking tape to both sides of the joint, removing within 5 minutes of application.

Everbuild Everflex 335 Construction Silicone product information

LIMITATIONS

• Not for use in conjunction with bitumen or asphalt. Use WEATHER MATE.
• Do not use on lead or soft metals. Use LEAD MATE SEALANT.
• On highly porous surfaces such as new concrete, priming is advised or use SILICONE 450.
• Not for use on substrates that may bleed oils, solvent or plasticisers.
• Do not use in the vicinity of, or in conjunction with the edge sealant of double glazed units. Use SILICONE 450.
• Use on uPVC and plastic components: Due to the wide variety and quality of these materials, the user must always carry out an adhesion test prior to use. For optimum adhesion, use SILICONE HM60 or SILICONE 450. Thermal movement of PVC-u frames can be excessive. This product accommodates movement of +/- 20% of the joint width. For a higher movement factor use SILICONE HM60 or SILICONE 450. When perimeter pointing to G.G.F standards, use only SILICONE 450 neutral cure.
• Overpainting is not possible, so on applications where overpainting is required, use WEATHER MATE (external only) or MIRROR MATE (internal or external use).