Product Data Sheet
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SikaSeal®-75

Two-part hard-setting mastic

SikaSeal®-75 is a two-part, hard-setting mastic that cures to form a durable, pick and chemical-resistant seal, engineered to withstand minor extension movements and substantial compression. This combination of strength and flexibility makes it well suited for challenging environments where durability and reliability are essential.

  • Excellent impact, wear and chemical resistance.
  • Complies with UK prison safety and security specifications.
  • Smooth, glossy finish.
  • Suitable for permanent water immersion.
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Product Data Sheet
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Usage

  • Ideal for cells, holding areas and secure perimeters requiring vandal resistant joints.
  • Perimeter securing of cell windows, doors and sanitaryware.
 
  • Swimming pools.
  • Compression joints in shower rooms and areas where long-term immersion in water is likely.

Advantages

  • Excellent impact, wear and chemical resistance.
  • Complies with UK prison safety and security specifications.
  • Smooth, glossy finish.
  • Suitable for permanent water immersion.

Packaging

1.5 kg (total when components A + B are mixed)

Colour

White

Product Details

Product Information

Shelf Life

30 months from date of manufacture when stored as directed.

Storage Conditions

Store in cool, dry conditions between +5  ̊C and +25  ̊C. Storage outside these parameters will dramatically reduce shelf life.

Density

1.5 g/cm³
Technical Information

Shore D Hardness

60-70

Compressive Strength

50 N/mm²

Tensile Strength

ca. 15 N/mm²

Chemical Resistance

Resistant to most alkalis and dilute acids, petrol and diesel. Resistant to most cleaning chemicals used in swimming pools. Neat hypochlorite crystals should not be applied to the product.

Service Temperature

-20 °C to +80 °C

Joint Design

Joint Width: 6 - 20 mm

Elongation at break

ca. 34 %

Application

Application Information

Ambient Air Temperature

+5 to +40 °C

Substrate Temperature

+5 to +40 °C

Pot Life

30 minutes @ 20 °C

Curing Time

24 hours @ 20 °C
Consumption

Consumption

Joint Size (mm)

Linear Metres /1.5 kg

6 x 6

27

9 x 6

19

10 x 10

10

12 x 9

9

20 x 10

5
Application steps

SUBSTRATE PREPARATION

Ensure surfaces are free from flaking material, dust, rust and grease. Degrease if necessary. During use, always wear impervious gloves and read safety warnings.

 

MIXING

Always add the complete contents of the Part B tin into Part A. Mix using a paddle mixer until homogeneous, approximately 2-3 minutes.

CLEANING OF TOOLS

Clean tools etc with xylene.

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