Product Data Sheet Safety Data Sheet Show all documents

Sikadur®-31 CF Slow

Thixotropic Epoxy Resin Adhesive

Sikadur®-31 CF Slow is a moisture tolerant, thixotropic, structural 2-component adhesive and repair mortar, based on epoxy resins and special fillers for use at higher temperatures between +25 °C and +45 °C.

Sikadur®-31 CF Slow has the following advantages:
  • Easy to mix and apply
  • Very good adhesion to most construction materials
  • High strength adhesive
  • Thixotropic: non-sag in vertical and overhead applications
  • Hardens without shrinkage
  • Different coloured components (for mixing control)
  • No primer needed
  • High initial and ultimate mechanical strength
  • Good abrasion resistance
  • Impermeable to liquids and water vapour
  • Good chemical resistance
Product Data Sheet Safety Data Sheet Show all documents

Usage

As a structural adhesive and mortar for:
  • Concrete elements
  • Hard natural stone
  • Ceramics, fibre cement
  • Mortar, Bricks, Masonry
  • Steel, Iron, Aluminium
  • Wood
  • Polyester, Epoxy
  • Glass
As a fast setting rapid repair adhesive and mortar:
  • Corners and edges
  • Anchoring , Holes and void filling
  • For vertical and overhead use
Joint filling and crack sealing:
  • Joint arris repair and crack sealing
 

Advantages

Sikadur®-31 CF Slow has the following advantages:
  • Easy to mix and apply
  • Very good adhesion to most construction materials
  • High strength adhesive
  • Thixotropic: non-sag in vertical and overhead applications
  • Hardens without shrinkage
  • Different coloured components (for mixing control)
  • No primer needed
  • High initial and ultimate mechanical strength
  • Good abrasion resistance
  • Impermeable to liquids and water vapour
  • Good chemical resistance

Packaging

1 kg and 5 kg units (A+B).

Colour

Component A: grey
Component B: black
Components A+B mixed: concrete grey

Product Details

Sustainability / Certifications / Approvals

APPROVALS / CERTIFICATES

  • The product suitable to be used with sewage projects, issued by The Egyptian National Research Center.
  • Sikadur® 31CF has been tested as per SCAQMD Method 304-91 . Result: VOC Content < 10 g/L.
Product Information

Composition

Epoxy resin

Shelf life

24 months from date of production

Storage conditions

Store in original, unopened, sealed and undamaged packaging in dry conditions at temperatures between +5 °C and +30 °C. Protect from direct sunlight.

Density

All types:
Comp. (A): 1.65 kg/I
Comp. (B): 1.65 kg/I
Technical Information

Compressive Strength

                        Normal/Rapid Typeat                                                                L.P Type
after 10 days

~60-70 N/mm2  at +10-20oC

~50 - 60 N/mm2  at +20-30oC
 
1 day+20 °C

~40-45  N/mm2

-
1 day+30 °C~35-45  N/mm2-
1 day+50 °C-~40-45  N/mm2

Tensile Strength in Flexure

Normal/Rapid Type
after 10 days at +10-20oC
30 - 40 N/mm2.
L.P Type
after 10 days at +20-30oC
-

Tensile Strength

Normal/Rapid Type
after 10 days at +10-20oC		L.P Type
after 10 days at +20-30oC
15 - 20 N/mm220 - 25 N/mm2

Shear Strength

Normal/Rapid Type after 10 days at +10-20oCL.P Type
after 10 days at +20-30oC
Bond strength to concrete
3.5 N/mm2
15 - 20 N/mm2
Bond strength to steel
~15 N/mm2

3-3.5 N/mm2 (concrete failure)

Coefficient of Thermal Expansion

50 x 10-6 per ºC (temp. range: -20 ºC to +40 ºC)

Application

Application Information

Mixing Ratio

Component A : component B = 2 : 1 by weight

Pot Life

oC

Normal Type

Rapid Type

L.P. Type

40
30
20
10
5

-
20 min.
40 min.
90 min.
-

-
-
20 min.
40 min.
60 min.		25 min.
50 min.
90 min.
-
-
Application steps

SUBSTRATE PREPARATION

  • AII surfaces must be clean, free from frost, standing water and all loosely adhering particles. Cement laitance must be removed.
  • Concrete must be at least 3 - 6 weeks old, depending on climate, wire-brush, sand-or water-blasted or grind substrates.

MIXING

  • Mix components (A+B) together for at least 2 minutes with a mixing paddle attached to a slow speed electric drill (max. 600 R.P.M.) until the material becomes smooth in consistency and even grey colour of the mixture is obtained.
  • Material in industrial packing must be stirred well before proportioning and mixing.
  • Avoid aeration while mixing.

CLEANING OF EQUIPMENT

Clean all tools and equipment immediately after use with Colma-Cleaner.

Documents