Welcome to the birthplace of Thermal & Cold Cure Acrylic Impregnation

Acrylic C120 is a self-penetrating, low shrinkage, two pack anaerobic Impregnant that is designed to cold cure, not on the surface, but within the cavity away from oxygen starved atmosphere. Surface contamination simply evaporates off., leaving no trace. However if the impregnant is applied to a hot surface, it will deposit a tough glazed film with minimal penetration of the substrate. To achieve the best result, fill the cavity with C120, controlling flow e.g. blocking and damming, where appropriate, with thixotropic C120 GEL. Alternatively, for large cavities, first fill with a dry granular filler, then impregnant to the point of saturation. For all other purposes C120 is a stand alone product.

Characteristics: Solvent less Acrylic C120 has a viscosity thinner than water thus allowing deep cavity penetration. Impregnant unaffected by solar radiation. Mild, pleasant odour. Excellent chemical and temperature resistance. Long pot life. Curing 2 to 3 minutes (room temperature). Can be refrigerated to extend cure time.


It is important that whilst C120 can be applied and cure in damp conditions. for best results C120 is applied in dry conditions to the point of complete saturation of the cavity thus eliminating trapped air. For larger cavities, first fill with dry white free flowing sand in layers followed by drenching of C120.

The product is capable of building the repair in-situ by reapplying C120 at 5minute intervals. It is equally at home for producing as a casting material, with or without fillers Temporary Sealing can be made during inclement/damp conditions and finalised saturation after an interlude of adequate dry weather.


>>To order please call 01635 861 888 or email sales@5mix.com<<



Re-usable 50ml Application Gun
If not already acquired

50ml Acrylic C120 Impregnant cartridge

50ml Acrylic C120 Gel cartridge (Optional)

50ml Nozzles x 10 (Optional)


10ml Acrylic C120 Impregnant syringe

10ml Acrylic C120 Gel syringe (Optional)

10ml Nozzles x 10 (Optional)
Spray Gun


Once primed with Activator, the product becomes a two pack impregnant of equal parts. Potlife one month. Mixing is post nozzle spray gun. Ideal for progressive spot saturation, building up the application at 10/15 minute intervals – time for each application to cure.

This is an important benefit where large defects require the addition of a granular dry filler to pack out the void and act as a retention for the impregnant. The repair would provide a permanent, long term weather seal within 10 minutes of application.

Subject to availability. Please enquire.

For further general information please reffer to the catalogue: Open Catalogue

Acrylic C120 Video

‘X-Seal C120 added to cable embedded in drilled cast iron casting to form a ‘gland’ seal against leakage’.

Comment from client: ‘C120 was the only sealant found to work’


Dated: 06.07.2010 Version: 2.0 File name: Technical Data Sheet – C120

Acrylic-C120 Impregnant

1. Characteristic data of the product

Acrylic – C120 is an impregnation sealant based on the development of thermal curing, monomer based acrylic impregnants used extensively in the world of the motor industry to seal porosity in automotive engine components and auxiliary equipment. Acrylic -C120 differs only that it cures at ambient temperature. The impregnant is both anaerobic and hydrophilic. It is self penetrating and cures within the substrate. Surface dampness will evaporate off, allowing the surface to remain free of impregnant. Suitable for treatment of: metal, stone, wood or composite material. Also regenerates strength to decayed and fragile materials as well as protecting against weather ingress and frost damage.

2. Physical and Chemical properties liquid

Appearance: 2 Pack Liquid Impregnant & Catalyst
S.G. @ 20oC: 0.890-0.98
Surface Tension: 30 dynes/cm
Odour: Mild methacrylate
Viscosity: 20oC No 1. Zahn 27-31 sec
Fluorescent: On request
Vapour Pressure: <1mm Hg
Solvent: Solvent free. Emulsifies: Soap and Water
Flash point: 104oC
Volatile matter: <2%
Shelf Life: 12 months*
Gel Time: (room temp) 60-180 secs
Anaerobic curing: Yes
Hydrophilic: Yes
Cure shrinkage: 5-9%
Adhesive strength: 112N/cm2
Swelling: (H2O 96hrs) 6-10%
Sealability: 100%
Temperature Range: -50/+200oC
Co-efficient/lin/exp: 0.000157/oC

3. Chemical Resistance (cured)

By extrapolation, US Mil Standard aluminium test rings treated with Acrylic-C120 Impregnant remained sealed when subjected to the following tests:

Anti-freeze: (ethylene glycol) 150oC – 14 days
Hydraulic Fluid: 100oC – 14 days
Gasoline: 23oC – 14 days
Engine Oil: 150oC – 14 days
Water: 100oC – 14 days
Brake Fluid: 25oC – 14 days
Transmission Fluid: 25oC – 96 hrs
Lubricating Oil: 121oC – 48 hrs
Turbine Fuel: 23oC – 48 hrs
Diester Grease: 23oC – 48 hrs
18% Sulphuric Acid: 23oC – 2 hours
10% Caustic Soda: 50oC – 14 days
Stoddart Solvent: 23oC – 48 hrs
Trichloroethylene: 25oC – 14 days
Ethyl Alcohol: 23oC – 48 hrs
Thermal Resistance: 200oC – 24 hrs
Hydrocarbon Fluid: 23oC – 14 days
Carbon Removal: 23oC – 30 mins

4. Approvals

The Porosity Sealant from which Acrylic-C120 Impregnant is formulated is based on product approvals from the following:


General Authorities:

US Navy MIL I 17563B Class 1, and 3. Underwriter’s Laboratory Inc. MH 16455. Lloyd’s Reg/Ship. MAT/05N1002. British Admiralty


Ford Motor Corp. General Motors. Chrysler Corp.
Hyundai Motor Honda Motor Corp. Volkswagen Co.
Toyota Motor Corp. Nissan Motor Corp. Perkins Engine Co.
BMW Renault Motor Co. Fiat Motor Co.
Bosch Auto. Cummins Corp. Citroen Motor Co.
Rolls Royce Motor Co. Lucas Diesel Co. Peugeot Co.
Caterpillar Corp. Rover Motor Co.


Boeing Aircraft Corp. (AWAC) British Aerospace.
BAE/GW/374 Bundesamt Fur ML 8030-010

This information and all further technical advice is based on our present knowledge and experience. However, it implies no liability or other legal responsibility on our part, including with regard to existing third party intellectual property rights, especially patent rights. In particular, no warranty, whether express or implied, or guarantee of product properties in the legal sense is intended or implied. We reserve the right to make any changes according to technological progress or further developments. The customer is not released from the obligation to conduct careful inspection and testing of incoming goods. Performance of the product described herein should be verified by testing, which should be carried out only by qualified experts in the sole responsibility of a customer. Reference to trade names used by other companies is neither a recommendation, nor does it imply that similar products could not be used.


All information is offered in good faith. No warranty is implied or offered. The user must ensure that the product is fit for purpose before treatment. Always test for compatibility.