Fosroc Thioflex 600 Gun Grade

UN3082 (Class: 9, Pk Grp: III)
Formulated to seal movement joints in building and civil engineering structures.
Available in 2.5 Litres in Grey
£39.22 £32.68
In stock
Product Description

Fosroc Thioflex 600 Gun Grade is formulated to seal movement joints in building and civil engineering structures, including superstructures, floors, basements and subways.

Available in gun and pouring grades. See Fosroc Thioflex 600 Pouring Grade.

Best Uses

Fosroc Thioflex 600 is particularly recommended for use in high-rise buildings and other applications where access for subsequent maintenance will be difficult and the risk of early movement failure must be minimised. It is also suitable for sealing joints in brickwork, retaining walls, basements and subways. The gun grade is ideal for general application.

  • Meets key international standards
  • Forms a tough, elastic, rubber-like seal
  • Accommodates continuous and pronounced cyclic movement
  • Excellent adhesion to most common substrates, including primed concrete, glass, aluminium and stainless steel
  • High resistance to ageing reduces physical damage due to climatic extremes

It is packed in a ready to mix, 2.5 litre tin containing the base and curing agent in the correct proportions.


Thioflex 600 may be applied to joints between 5 and 50 mm wide. Joints which are expected to experience cyclic movements should be designed to an optimum width : depth ratio of 2: 1, subject to the overriding recommended minimum sealant depths set out below:

  • 5 mm for metals, glass and other non-porous surfaces
  • 10 mm for all porous surfaces
  • 20 mm for trafficked joints and those subject to hydrostatic pressures

The use of a surface primer is always required on porous surfaces. On non-porous surfaces a primer is not normally required except where glass or glazed surfaces are to be permanently immersed in water.

Technical Details


  • British Standard EN14188-2:2004. Use of Fosroc Primer 7E required
  • U.S. Federal Specification TT-S-00227E November 1969 (amended 1970)
  • DTp specification for Highway Works December 1991 series 1000 clause 1017
  • ASTM C920-87: Type M, Grade NS, Class 25.
  • London Underground Approved. LUL APR No. Complies with LU Standard 1-085 ‘Fire Safety Performance of Materials’


Components: One Pack
Type: Paste Compound
Stock Colours: Grey
Tintable: No
VOC Content:
Volume Solids: 100%
Suitable Substrates: Metals, Glass, Non porous substrates, porous surfaces, trafficked joints
Application Method: Gun Grade
Theoretical Coverage: See product data sheet
Wet Film Thickness (WFT): See product data sheet
Dry Film Thickness (DFT): See product data sheet
Induction Time: -
Pot Life: 2 hours at 25°C
Setting Time: 36 hours at 15°C
Fully Cured: 2 weeks at 15°C
Cleaner / Thinner: Clean equipment immediately after use with Fosroc Equipment Cleaner.
Shelf Life: 12 months in original containers when kept in dry conditions between 5°C and 27°C.
Packaging: Available in 2.5 Litres

The manufacturers data sheets are available for download from this website. It is your responsibility to read and understand all aspects of the data sheets before you place an order and prior to application. Please pay special attention to the preparation, mixing and application temperatures of the product, cleaning of substrate and environmental factors such as temperature, rain etc. Quoted coverage rates are based on the manufacturers theoretical rates and may vary depending upon substrates absorption, texture and application. We always recommend a test is carried out to ensure suitability.

Customer further agrees that Promain have no liability for any errors or omissions contained within the Product Data Sheets and are not liable for failure due to misapplication or inadequate substrate cleaning and preparation. For more information please refer to our Terms & Conditions.

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