Product Data Sheet Safety Data Sheet Show all documents

SikaFix® AC-21

ACCELERATOR FOR SikaFix®-210 POLYURETHANE BASED INJECTION SEALING RESIN

SikaFix® AC-21 is a yellowish liquid which accelerates the reaction time of the SikaFix®-210. SikaFix®-210 mixed with SikaFix® AC-21 starts foaming in both in contact with water and also in dry conditions without water.

  • For use at low temperatures
  • High and rapid foaming
  • Stops unexpected high water inrush
  • Modular system with SikaFix®-210 Injection resin and SikaFix® AC-21 SF
Product Data Sheet Safety Data Sheet Show all documents

Usage

SikaFix® AC-21 is a specially formulated accelerator which reduces the reaction time of SikaFix®-210, particularly at low temperatures, or for the stopping of water inrushes. In situations with high water inrush and if a faster foaming and expanding action is required, the mixture of SikaFix®-210 and SikaFix® AC-21 can be further accelerated by the addition of SikaFix® AC-21 SF.  

Advantages

  • For use at low temperatures
  • High and rapid foaming
  • Stops unexpected high water inrush
  • Modular system with SikaFix®-210 Injection resin and SikaFix® AC-21 SF

Packaging

4 kg

Colour

Yellow

Product Details

Product Information

Composition / Manufacturing

Amine based accelerator

Shelf Life

12 months shelf life from date of production if stored properly in undamaged, unopened, original sealed packaging.

Storage Conditions

Dry storage at temperatures from +5 °C up to +35 °C. Protect from direct sunlight and humidity.

Density

~0.99 kg/l (at 23 °C)

(ISO 2811)

 

Application

Application Information

Ambient Air Temperature

+5 °C min. / +35 °C max.

Substrate Temperature

+5 °C min. / +35 °C max.

Reaction Time

Dry Environment, 20 °C material and ambient temperature

Dosage*

Foaming Start

Foaming End

Foaming Factor

0 %

~45 s

-

~1 fold

5 %

~15 s

~25 s

~10 fold

10 %~12 s~21 s~15 fold
15 %~10 s~17 s~20 fold
20 %~9 s~14 s~25 fold

Wet Environment (10 % water), 20 °C material and ambient temperature

Dosage*

Foaming Start

Foaming End

Foaming Factor

0 %

~48 s

~75 s

~3 fold

5 %

~20 s

~45 s

~25–30 fold

10 %~15 s~35 s~25–30 fold
15 %~13 s~27 s~25–30 fold
20 %~11 s~21 s~25–30 fold

Dry Environment, 10 °C material and ambient temperature

Dosage*

Foaming Start

Foaming End

Foaming Factor

0 %

~100 s

-

~1 fold

5 %

~30 s

~40 s

~10 fold

10 %~25 s~35 s~15 fold
15 %~21 s~30 s~20 fold
20 %~18 s~14 s~25 fold

Dry Environment, 5 °C Material and Ambient Temperature

Dosage*

Foaming Start

Foaming End

Foaming Factor

0 %

~140 s

-

~1 fold

5 %

~40 s

~52 s

~10 fold

10 %~33 s~46 s~15 fold
15 %~28 s~41 s~20 fold
20 %~25 s~14 s~25 fold

*   SikaFix® AC-21 in % by weight of SikaFix®-210 (Component A+B)
Application steps

MIXING

Shake the unopened can of SikaFix® AC-21 thoroughly immediately prior to mixing.
Mix SikaFix® AC-21 into comp. A of SikaFix®-210 until homogenous.

The mixing ratio of (SikaFix®-210 comp. A + SikaFix® AC-21) : SikaFix®-210 comp. B remains at 1:1 by volume. Reduce the amount of SikaFix®-210 comp. A accordingly if adding SikaFix® AC-21.
Use SikaFix®-210 according to the respective Product Data Sheet and Application Instructions.

CLEAN UP

Clean all tools and application equipment according to the Product Data Sheet for the Sika® Injection Cleaning System.
Hardened/cured material can only be removed mechanically.

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