Sikaflex®-11 FC

Polyurethane elastomer

Twelve (12) months from the date of production, if it is stored in undamaged, original sealed packaging and if storage conditions are met.

Store in dry conditions, where it is protected from direct sunlight and at temperatures between +5 °C and +25 °C

~1.2 kg/litre

51.6 g/L

-20 °C to +70 °C

Good resistance to water, weak acids, weak alkalis, sewerage, mineral oils, vegetable oils, fats, fuels. (Not resistant to organic solvents, paint thinner, strong acids, strong alkalis). Consult Technical Service for specific data.

Excellent

+5°C to +40°C. Sealant should be installed when joint is at mid-range of its anticipated movement.

Use closed cell polyethlene foam backing rods.

All surfaces must be structurally sound, clean, dry and free from grease, oil, wax, dust and surface contaminats such as curing compounds, release agents, coatings and friable material. Sikaflex®-11 FC adheres without primers and/or activators. However, for optimum adhesion and critical, high performance applications, such as on multi storey buildings, highly stressed joints, extreme weather exposure or water immersion, the following priming/or pre treatment procedures shall be followed.

Non-porous substrates: 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® Aktivator- 205 applied with a clean cloth. Before bonding / sealing, allow a waiting time of > 15 minutes (< 6 hours). Other metals, such as copper, brass and titanium-zinc, clean and pre-treat using Sika® Aktivator-205 applied with a clean cloth. After a waiting time of > 15 minutes (< 6 hours). Apply Sika® Primer-3 N applied by brush. Allow a further waiting time of > 30 minutes (< 8 hours) before bonding / sealing.
Porous substrates: Concrete, aerated concrete and cement based renders, mortars and bricks, prime surface using Sika® Primer-3 N applied by brush. Before bonding / sealing, allow a waiting time of > 30 minutes (< 8 hours). For more detailed advice and instructions contact Sika Technical Services.
Note: Primers are adhesion promoters and not an alternative to improve poor preparation / cleaning of joint surfaces. Primers also improve the long term adhesion performance of the sealed joint.

Clean all tools and application equipment immediately after use with Sika® Remover-208 and / or Sika® Thinner C. Once cured, hardened material can only be removed mechanically. For cleaning skin use Sika® Everbuild Wonder Wipes.