Coatsol | Coatseal
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(Formally Rayseal)
Each component used conforms to the original Raychem approved
specification and undergoes thorough quality control.


Coatseal (formally known as Rayseal) is an electrically-shrinkable sealing sleeve, and is used in low pressure gas systems for the sealing of leaking caulked / screwed bell and spigot joints where the use of a naked flame or heat gun is not a viable option. The wraparound sleeve is manufactured from modified crosslinked polyolefin coated with a thermoplastic sealing adhesive. The mastic sealing profile supplied with the sleeve serves to fill out the transitional zone between the bell and the pipe. In the supplied condition the sleeve is expanded to allow it to be conveniently fitted onto the caulked/screwed bell-and spigot joint. It is closed by means of a flexible chromium-nickel steel channel. When electrically heated, the sleeve shrinks tightly onto the leaking caulked/ screwed bell-and-spigot joint, completely sealing it off, while the sealing adhesive and the sealing profile melt and are forced into any cavities or irregularities.

Special Characteristics

  • High mechanical strength
  • Excellent resistance to acidic and alkaline soils
    and likewise to soil bacteria and fungi.
  • Withstands internal pressures up to 75mb (LP)
  • Quick and easy installation under
    normal service pressure.

  • No primer required
  • Total operator independence results in reproducible,
    high-quality installations.
  • Limited space for application required
  • Applicable to most pipe materials including,
    steel, cast iron, ductile iron and P.E.

Additional Equipment

  • Wire brush

  • Electrofusion Unit

Literature provided

Each sleeve is packed with installation instructions and is given a unique Coatsol Lot number which enables full traceability of component parts including the date of manufacture and person/persons responsible for the QC and manufacture.

Network Uses

Coatsol believe Coatseal to be an ideal solution for the following:

  • Leaking Internal & External Risers
  • Electric Cables
  • Leaking Welded Joints

  • Leaking Bell & Spigot Joints
  • Leaking Couplings

Coatseal is the original and superior fully approved product unlike competitors inferior performing imitations. Each component used conforms to the original Raychem approved spec and undergoes thorough QC within the manufacturing process, to ensure our customers receive the best quality product.

Prices & Ordering


Please contact Coatsol for prices.

Approvals / Recognised Standards


Coatsol’s Coatseal is constructed from all original Raychem components of which were tested to conform to the below standard:


BGC/PC/LC8 Part 1.

Warranty & Technical Support


Ongoing technical support is available from our head office, with the Coatseal having a product only warranty.

Training Arrangement


A full training package will be available from Coatsol, either at our Head Office or your place of business. This course consists of both Coatseal/GRSM installation procedures and techniques, but can be tailored to meet the buyer’s needs.

Maintenance Requirements



Description of any special technique or unique tools, plant & equipment required


To shrink the Coatseal, Networks can utilize the Fusion units already in operation and used by their engineers.

Future Use – Purchasing, Delivery, Packaging & Recycling arrangements


Please contact Coatsol for prices.