Red, low VOC – rust penetrant sealant for metal and concrete

abe® Rustopak Red Penetrant Sealant is a low VOC penetrating liquid used in conjunction with abe® Rustopak Top Coat. It is a single component, specifically compounded system, bound together with a calcium sulfonated alkyd in an aliphatic hydrocarbon that is applied over surfaces with tightly adherent rust and also hard to reach areas such as crevices which are properly sealed off without the need of dismantling equipment.


abe® Rustopak Red Penetrant Sealant is used in the following areas:

Directly to metal (DTM) if the metal is clean and free of loose corrosion deposits
Beneath the abe® Rustopak Top Coat
Structural steel work
Bolts and nuts
Bridges & gantry cranes
Concrete foundations and plinths
Transmission towers
Metal roofs
a.b.e.® inspected and approved steelwork in harbours and railway stations
Manufacturing facilities having aggressive chemical fallout
a.b.e.® inspected and approved steel structures and supporting equipment bases in chemical environments
Metal cross-bracing where the galvanised sections have been abraded off, back to back angles and rockers
Ship yard builders/maintenance equipment for large and small vessels
Mining industry above and below ground

  • Excellent durability offering an economic lifespan 
  • Excellent corrosion resistance 
  • Easy to apply by brush, roller or spray
  • Excellent penetration into inaccessible jointed areas, mounting bolts, crevices, etc.
  • Extremely good wetting properties
  • Cost effectiveness compared with old frequent continual maintenance or element replacement costs
Typical Properties

abe Construction Chemicals DIY super laykold spray & seal Applications

Performance Characteristics

abe Construction Chemicals DIY super laykold spray & seal Applications

Typical Hudson Type Sprayer

abe Construction Chemicals DIY super laykold spray & seal Applications

Surface Preparation

Surface preparation standards are: SSPC SP-1, SSPC SP-2, SSPC SP-3, SSPC SP-6, SSPC SP-7, SSPC SP-12 or SSPC SP-14 (or Equivalent NACE STANDARD). See previous definitions.

Direct to steel:
All surfaces are to be clean, sound, dry and free of all loose friable material including, oil, salts, grease to be removed in accordance with SSPC-SP1 SOLVENT CLEANING.

All loose rust, rust scale, and old non-adherent paint must be removed in accordance with SSPC-SP2, SSPC SP-3, SSPC-SP-6, SSPC SP-7, SSPC SP-12 or SSPC-SP14 (or equivalent NACE Standards).  In areas with extremely heavy pack rust a commercial blaster in accordance with SSPC-SP6 may be necessary.

Final wash down process: Dissolve abe® Rustopak Cleaner at a ratio of 23 ml (30 grams) to 5 litres of potable water and thoroughly spray the entire surface to be treated, followed by a further thorough rinsing of the surface with clean potable water and allow to dry.



This low viscosity penetrating coating is intended for use as a penetrating sealer for rockers, jointed or bolted areas of steel structures, which suffer from pack rust.

The air and surface temperature shall be over -17.7 °C but less than 54 °C and the weather conditions shall be such that the coated areas shall not be subjected to rain or water contact for a 6 hour period after application. Allow at least 6 hours cure time at 25 °C before top coating. The joint area may seem tacky or oily after a 6 hour cure but can be top coated.

At lower temperatures extend the cure time an additional 6 to 12 hours. The material temperature prior to being applied must be elevated to achieve a workable viscosity. This temperature may be higher than the minimum recommendations of 1.6 °C to 7.2 °C based on equipment, desired working times and ambient conditions. Ambient temperatures must remain at least 3 °C above Dew Point and rising during application. Material should not be
applied when the relative humidity exceeds 90% or the substrate temperature is higher than 53 °C. Surface particle reading must be between 1-3. Maximum surface salt must be less than 70 mg/m2.

Always confirm intercoat adhesion when topcoating a sealed area if there is any questions about temperature, moisture or cure of the abe® Rustopak Red Penetrant Sealant.

Mix the coating thoroughly by hand to a uniform consistency using a suitable paint stirrer and power drill or flat paddle, not a round bar. Do not thin.

Apply by spray or brush. If the coating runs or sags, smooth out runs with a brush. Excess coating and moisture will exit from the lower edge of the joint.

Because of the porous nature of the rust layer and the inaccessibility of the area inside the joint, wet film thickness measurements should not be taken but relative thickness determined by applying a given amount of material in a defined area.

Deposit enough abe® Rustopak Red Penetrant Sealant to thoroughly wet the joint seams. Coat the upper edge of all seams first, working down the sides of the joint from the top to the bottom, propelling the material into the joint. Moisture will be displaced from the joint and should be allowed to exit freely from the bottom of the joint area.

NOTE: Joint geometries vary widely and it is not the intent of this specification to address the application of each joint type. The applicator must evaluate individual joint geometries to determine the best method of applying abe® Rustopak Red Penetrant Sealant to achieve optimal joint coverage using the basic principles listed above.


This coating can be sprayed, brushed or rolled. A “HUDSON TYPE SPRAYER” with a wand is the preferred method of spraying this material although it can be sprayed with airless equipment at low pressure or be applied by brush or rollers. If brushing or rolling, do not over brush or roll, as this will limit film build. Brush or roll from the top of the joint down.

Coverage - Approximately

9 m2/litre to obtain a DFT of 50 microns on steel (111 microns WFT). Adjacent concrete plinths etc. may absorb more product due to its porosity therefore requiring more product to coat the surface. Application rates may vary subject to surface profile, irregularities and absorption rates.

Handling and Storage

abe® Rustopak Red Penetrant Sealant has a shelf life of 12 months from date of manufacture if kept in a dry cool place in the original sealed packaging and under cover. In more extreme conditions this period might be shortened. Do not expose to heat, flame, sparks, static electricity or other sources of ignition; it may explode.

Cleaning of Equipment

Tools, brushes and mixing equipment should be cleaned with mineral turpentine immediately after use and before material has set.

Protection on Completion

Ensure the abe® Rustopak Red Penetrant Sealant is suitably protected from the elements until it has cured.

Health & Safety

Keep out of reach of children. Avoid contact with skin and eyes.  Wear appropriate protective equipment and clothing. Product safety information required for safe use is not included. Before handling, read product and safety data sheets and container labels for safe use, physical and health hazard information. The safety data sheet is available from your local a.b.e.® Construction Chemicals sales representative.


abe® Rustopak Red Penetrant Sealant (also available in clear) , supplied in containers of:
1 litre (code: 120 09 001)
5 litre (code: 120 09 005)
20 litre (code: 120 09 020)
400 ml (Spray can – clear only) (code: 120 08 400)

Important Note

This data sheet is issued as a guide to the use of the product(s) concerned. Whilst a.b.e.® Construction Chemicals endeavours to ensure that any advice, recommendation, specification or information is accurate and correct, the company cannot – because a.b.e.® has no direct or continuous control over where and how a.b.e.® products are applied – accept any liability either directly or indirectly arising from the use of a.b.e.® products, whether or not
in accordance with any advice, specification, recommendation or information given by the company.

Further Information

Where other products are to be used in conjunction with this material, the relevant technical data sheets should be consulted to determine total requirements. a.b.e.® Construction Chemicals has a wealth of technical and practical experience built up over years in the company’s pursuit of excellence in building and construction technology.