Product Data Sheet Show all documents
Sikadur®-51

Sikadur®-51

EPOXY FLEXIBLE RESIN FOR SEALING JOINTS

Sikadur®-51 is a 2- component 100% solids epoxy joint sealant of a putty like consistency based on flexible epoxy resins. After mixing it cures to form a tough but resilient sealant and patching compound.

  • It can be used as a safety sealant (non-pick)
  • Non-sag on vertical surfaces.
  • Movement capability of ± 5%
  • Permanently flexible, does not stiffen over time.
  • Prevents deterioration of joint edges.
  • Excellent adhesive properties to many materials.
  • Complies with ACI-302.1R (4.10-Materials for sealing together).
  • Can be used on slopes up to 15%.
  • Durable and resists heavy traffic and forklift tyres.
  • Good Chemical resistance.
  • Can be applied to damp substrates with use of a primer, Sikadur® -52.
Product Data Sheet Show all documents

Usage

  • Filling of horizontal control and construction joints with little or no movement.
  • For heavy duty concrete floors and is often used in conjunction with Sikafloor epoxy systems.
  • Filling of cracks with little or no movement.
 

Advantages

  • It can be used as a safety sealant (non-pick)
  • Non-sag on vertical surfaces.
  • Movement capability of ± 5%
  • Permanently flexible, does not stiffen over time.
  • Prevents deterioration of joint edges.
  • Excellent adhesive properties to many materials.
  • Complies with ACI-302.1R (4.10-Materials for sealing together).
  • Can be used on slopes up to 15%.
  • Durable and resists heavy traffic and forklift tyres.
  • Good Chemical resistance.
  • Can be applied to damp substrates with use of a primer, Sikadur® -52.

Packaging

Set of 3 kg kits (Parts A + B)

Colour

Grey concrete

Product Details

Product Information

Composition

2 component epoxy resin thixotropic paste

Shelf life

2 years in original unopened packaging.

Storage conditions

Between + 5 ° C and + 35 ° C. Condition the material at a temperature between 18 ° C and 24 ° C before use.

Density

~ 1.55 kg/l  a 23°C

Viscosity

Component A:

5.800 cps

Component B:

7.900 cps

Mixed A + B :7.000 cps
Technical Information

Shore A hardness

70-80

Shore D Hardness

> 50 

Tensile strength

3.9 MPa

Tensile adhesion strength

Steel: 2.5 MPa approx. (sandblasted)

Concrete: 2.0 MPa approx. (sandblasted)

Service temperature

-20°C to +50°C

Application

Application Information

Mixing ratio

Comp. A : Comp. B = 2 : 1 (by volume)

Pot Life

TemperatureTime

100C

~2 hours

200C~1 hour
300C~30 mins

Curing rate

For Pedestrian traffic

1-2 days

For vehicle loading

2-6 days

(both dependant on temperature)
Application steps

SUBSTRATE QUALITY

All surfaces must be clean, dry and free from any loosely adhering particles or surface contaminants such as dirt, oil, dust, grease, etc.

SUBSTRATE PREPARATION

The substrate should be clean and firm. All dust, grout, grease, curing agents, adhesion inhibiting impregnations, waxes and any other contaminants should be removed. The concrete must be clean and prepared, removing the surface grout and giving it an open pore texture by abrasive treatment or equivalent mechanical means.

MIXING

For best results premix each component. Pour Component A and Component B  into a clean container in equal parts by volume. Mix properly with low speed drill (400 to 600 rpm) for at least 3 minutes until color is uniform. Mix only the amount to be applied within the life of the product.

CLEANING OF EQUIPMENT

Uncured material may be cleaned from application tools etc. by using Sika Colma Cleaner (flammable solvent).  Cured material can only be removed mechanically.

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