International Interplus 356

SKU id18951 Part A and B: UN1263 (Class: 3, Pk Grp: III)
A low VOC, two component, internally flexibilised, high build, low temperature curing (down to -5°C), surface tolerant epoxy primer.
Available in 5 Litres in Aluminium
£103.00 (£123.60 Inc VAT)

Product Description

International Interplus 356 is a low VOC, two component, internally flexibilised, high build, low temperature curing (down to -5°C), surface tolerant epoxy primer. Metallic pigmented with aluminium and lamellar micaceous iron oxide for increased corrosion resistance.

Best Uses

International Interplus 356 is formulated as a high performance maintenance coating for use on a wide variety of surfaces including hand or power tool cleaned rusty steel. Specifically designed for use at low temperatures or where rapid overcoating is essential. Ideal for use in conjunction with wet abrasive blasting and ultra high pressure water blasting.

Interplus 356 is particularly useful in the maintenance of offshore structures and other aggressive environments such as refineries, chemical plants, coastal structures, pulp and paper mills and bridges when dry abrasive blasting is not possible.

Available in Aluminium Grey in a matt finish.


The performance of this product will depend upon the degree of surface preparation. The surface to be coated should be clean, dry and free from contamination. Prior to paint application, all surfaces should be assessed and treated in accordance with ISO 8504:2000. Accumulated dirt and soluble salts must be removed. Dry bristle brushing will normally be adequate for accumulated dirt. Soluble salts should be removed by fresh water washing.

Abrasive Blast Cleaning
Interplus 356 may be applied to a surface abrasive blast cleaned to a minimum Sa1 (ISO 8501-1:2007) C or D grade rusting, or SSPC SP7.

Hand or Power Tool Preparation
Hand or power tool clean to a minimum of St2 (ISO 8501-1:2007) or SSPC-SP2. Note, all scale must be removed and areas which cannot be prepared adequately by chipping or needle gun should be spot blasted to a minimum standard of Sa2 (ISO 8501-1:2007) or SSPC-SP6. Typically this would apply to C or D grade rusting in this standard. On steel surfaces operating at in-service temperatures up to 100°C (212°F) cleaning to a minimum St3 (ISO 8501-1:2007) or SSPC-SP3 is required for optimum performance.

Ultra High Pressure Hydroblasting / Abrasive Wet Blasting
May be applied to surfaces prepared to Sa2½ (ISO 8501-1:2007) or SSPC-SP6 which have flash rusted to no worse than Grade HB2½M (refer to International Hydroblasting Standards) or Grade SB2½M (refer to International Slurry Blasting Standards). It is also possible to apply to damp surfaces in some circumstances. Further information is available from Promain's techncial team.

Aged Coatings
Interplus 356 is suitable for overlap onto most aged coating systems. Loose or flaking coatings should be removed back to a firm edge. Glossy epoxies and polyurethanes may require abrasion.

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