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NBS Source

Bund Sealer

Watco UK Ltd

One coat, high build, virtually solvent free, epoxy resin bund sealer.

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+44 (0)1483 418418 Website


Areas of use:

  • Chemical and oil storage and bund areas;
  • Plant rooms;
  • Walls and floors;
  • Internal and external.


A one coat, high build, virtually solvent free, epoxy resin bund sealer which seals and protects bunded areas against spillages of water, oil, petrol and diesel. Containing a glass flake reinforcement which provides excellent resistance against chemical attack, Watco Bund Sealer cures to form a hard surface film which withstands heavy traffic.

Features and benefits:

  • One coat, high build, epoxy resin bund sealer.
  • Will cure at temperatures as low as 5°C.
  • A+ VOC emissions rating with a low level of VOC.
  • Forms a waterproof barrier to seal and protect against oil, petrol, diesel and chemical spillages.
  • Can be used with Watco Fibreglass Reinforcing Tape to fill cracks and joints between the bund wall and the floor to prevent leaks.
  • Withstands heavy traffic.
  • Contains glass flake reinforcement for even greater resistance to chemical attack.
  • Provides excellent protection to metal tanks and pipes.
  • Helps comply with The Control of Pollution (Oil Storage) Regulation.
  • Can be applied at temperatures as low as 5°C.
  • Virtually solvent free – suitable for confined spaces.
  • Superior performance demonstrated by ISO testing to CE Mark EN 1504-2.

General information







Epoxy resin

Glass reinforced, high solids, epoxy resin.


Pr_35_31_68_27 Epoxy resin coatingsPrimary
Pr_35_31_68_47 Liquid tanking resins


M60/18 Special coating

M60/195 Special coating

M12/110 Resin flooring

M12/12 Resin flooring

Specification data - Epoxy resin coatings


Glass fibre reinforced.


Light grey.


Product Reference

Bund Sealer

Dry film thickness

300 microns.

Wet film thickness (minimum)

300 microns.

Abrasion resistance

185 mg.

To ISO 5470-1.

Impact resistance

Class 1.

To ISO 6272.

Scratch resistance

6 N.

To ISO 4586-2.


4.5 MPa/Nmm².

To EN 1542.

(To ISO 2409 Class 3).

Chemical resistance



20 mm.

To ISO 1519.


9 H.

Wolff-Wilborn Hardness Test.

Slip resistance

31 PTV.

To BS7976-2.


Data Sheet: Bund Sealer

Data Sheet: Bund Sealer