Sikaflex®-11 FC Purform®

Ambient Air Temperature +5 °C min. / +40 °C max.

Substrate Temperature +5 °C min. / +40 °C max.

The joint width must be ≥ 10 mm and ≤ 35 mm.

and a with to depth ratio of 1:0.8 for floor joints must be maintained

A width to depth ratio of 1:0.5 for facade joints

Minimum joint width for perimeter joints around windows is 10 mm.

Do not use to seal glass.

Do not use for bonding glass if the bond line is exposed to sunlight.

Do not use on polyethylene (PE), polypropylene (PP), polytetrafluoroethylene (PTFE / Teflon), and certain plasticised synthetic materials.

Do not use on bituminous substrates, natural rubber, EPDM rubber or on any building materials which might leach oils, plasticisers or solvents that could degrade the adhesive.

Do not use for joints under water pressure or for permanent water immersion.

Do not use to seal joints in and around swimming pools.

An adhesive to bond construction components and materials such as: Concrete

An adhesive to bond construction components and materials such as: Masonry

An adhesive to bond construction components and materials such as: Ceramic

An adhesive to bond construction components and materials such as: Wood

An adhesive to bond construction components and materials such as: Metal

An adhesive to bond construction components and materials such as: Glass

Movement capability of ± 25 %

Sikaflex®-11 FC Purform® can be overpainted with most conventional water-based coating and paint systems.

However, paints must first be tested to ensure compatibility by carrying out preliminary trials.

The best over-painting results are obtained when the adhesive is allowed to fully cure first.

Note: non-flexible paint systems may impair the elasticity of the adhesive and lead to cracking of the paint film.

Sikaflex®-11 FC Purform® adheres without primers and/or activators.

However, for adhesion to many substrates, joint durability and critical, high performance applications the following priming and/or pre-treatment procedures must be followed:

Aluminium, anodised aluminium, stainless steel, PVC, galvanised steel, powder coated metals or glazed tiles, slightly roughen surface with a fine abrasive pad. Clean and pre-treat using Sika® Cleaner P or Sika® Aktivator-205 applied with a clean cloth.

Other metals, such as copper, brass and titanium-zinc, clean and pre-treat using Sika® Cleaner P or Sika® Aktivator-205 applied with a clean cloth. After a waiting time of > 15 minutes (< 6 hours). Apply Sika® Primer-3 N by brush.

Concrete, aerated concrete and cement-based renders, mortars and bricks, prime surface using Sika® Primer-3 N or Sika® Primer-115 applied by brush.

PVC has to be cleaned and pre-treated using Sika® Primer-215 applied with a brush.