Sikaflex® Fillet

Polyurethane

12 months from the date of production if the storage conditions are met.

Must be stored in original, undamaged, sealed container in dry conditions protected from direct sunlight and at temperatures between +10°c and +25°c.

~1.3 kg/l

±10%

The joint width must be designed to suit the movement capability of the sealant. In general the joint width must be greater than 10 mm and less than 35 mm. A width to depth ratio of 2 : 1 must be maintained for joints over 12mm wide with a minimum depth of 8mm.

All joints must be properly designed and dimensioned by the specifier and the main contractor in accordance with the relevant standards.

Backing: Depending on application closed cell, polyethylene foam backing rods or open cell foam backing rod must be used.

+5°C to +35°C

+5°C to +35°C

~3-4mm per 24 hours (+23°c & 50% relative humidity)

~40 minutes (+23°c & 50% relative humidity)

The substrate must be clean, dry, sound and homogeneous, free from oils, grease, dust and loose or friable particles. Sikaflex® Fillet adheres without primers and/or activators. However, for optimum adhesion and critical, high performance applications, such as on multi-story buildings, highly stressed joints, extreme weather exposure or water immersion, the following priming and/or pretreatment procedures shall be followed:

Non-porous substrates

Aluminium, anodised aluminium, stainless steel, galvanised steel, powder coated metals or glazed tiles have to be cleaned and pre-treated using Sika® Aktivator-205, wiped on with a clean towel. Before sealing, allow a flash-off time of > 15 minutes (< 6 hours).
Other metals, such as copper, brass and titanium-zinc, also have to be cleaned and pre-treated using Sika® Aktivator-205,wiped on with a  clean towel. After the necessary flash-off time, use a brush to apply Sika® Primer-3 N and allow a further flash-off time of > 30 minutes (< 8 hours) before sealing the joints.  PVC has to be cleaned and pre-treated using Sika® Primer-215 applied with a brush. Before sealing, allow a flash-off time of > 30 minutes (< 8 hours).

Porous substrates
Concrete, aerated concrete and cement based renders, mortars and bricks shall be primed using Sika® Primer-3 N applied with a brush.  Before sealing, allow a flash-off time of > 30 minutes (< 8 hours). For more detailed advice and instructions please contact the local Sika Technical Services Department.

Note: Primers are adhesion promoters. They are neither a substitute for the correct cleaning of a surface, nor do they improve the strength of the surface significantly.

Clean all tools and application equipment with Sika® Remover-208 immediately after use. Hardened / cured material can only be mechanically removed.