Introduction

Not every waterproofing challenge is about keeping water out sometimes it’s about stopping oil, moisture and rising chemicals from ruining a coating before it even has a chance to bond. This is a common headache in workshops, factories and industrial units and it’s precisely the problem ASODUR-SG2 was designed to solve.

Produced by SCHOMBURG, ASODUR-SG2 is a specialized primer that also functions as a vapour barrier, engineered specifically for oil-contaminated concrete floors and damp substrates. If you’ve been searching for genuine water stoppers, reliable waterproofing products or trustworthy waterproofing companies serving waterproofing in Karachi, this blog breaks down exactly how ASODUR-SG2 works and why it’s a smart specification for difficult flooring conditions.

The Problem ASODUR-SG2 Solves

Ordinary primers often fail on oil-contaminated or damp concrete because they can’t bond properly through residual oils or rising moisture. ASODUR-SG2 gets around this with a low solvent, moisture-resistant, two-component epoxy resin formulation that has a notably high density. This density is what allows it to actually displace water sitting inside the concrete’s capillaries, rather than being pushed out by it.

The result is a primer that can be applied directly onto damp or previously oil-affected concrete and still achieve a durable bond something most standard coatings simply cannot do.

How ASODUR-SG2 Performs

  • Displaces water from the capillaries of concrete floors
  • Acts as a protective barrier against capillary rising oil and other chemical substances
  • Resists chemicals rising up from the soil beneath the slab
  • Bonds excellently even on wet concrete surfaces

This makes ASODUR-SG2 effective as both a vapour barrier and a water stopper, holding back moisture and oil migration from below while providing a stable base for the next coating layer.

Where ASODUR-SG2 Is Used

ASODUR-SG2 is specifically formulated for two main scenarios:

  1. As a primer on oil-contaminated concrete surfaces that have already been cleaned
  2. As a priming coat on still-damp concrete or screed surfaces that will subsequently be coated with ASOFLOOR flooring systems

This makes it particularly relevant for industrial flooring, workshop floors and any concrete surface where oil residue or ground moisture is a persistent issue.

Getting the Surface Ready

Correct surface preparation is the single most important factor in ASODUR-SG2’s performance, especially on oil-affected floors.

For oil-contaminated concrete:

  1. Clean the floor using an emulsifying cleaning agent, following the manufacturer’s application instructions.
  2. Follow up with a thorough clean using a high-pressure water jet pump.
  3. Apply ASODUR-SG2 by roller or brush while the surface is still wet there should be no standing film of water, but the surface must not be allowed to dry out.

A critical warning: if the cleaned surface dries before ASODUR-SG2 is applied, residual oil will migrate back up to the surface and block proper bonding. Because oil-contaminated floors can behave unpredictably, SCHOMBURG recommends consulting their Technical Services Department for particularly problematic cases.

Mixing ASODUR-SG2 Correctly

ASODUR-SG2 arrives as a two-part system Component A (resin) and Component B (hardener) already supplied in the correct mixing ratio. To prepare it:

1. Pour Component B completely into Component A, making sure the hardener fully drains from its container.

2. Mix using a suitable mixer running at 300 rpm.

3. Ensure the hardener is evenly dispersed throughout the resin.

4. Continue mixing until the blend is homogeneous — this takes approximately 3 minutes.

5. Keep the mixing temperature at a minimum of 10°C.

6. Pour the mixed material into a clean container and give it one more thorough mix before application.

Storage, Handling and Safety

  • Packaging: Available in 2 kg units, with 5 kg containers.
  • Storage: Keep Component A and Component B stored separately for at least 24 months, following regulations for water-endangering substances and the relevant EC data sheet.
  • Safety: Once cured, ASODUR-SG2 is harmless. However, the hardener (Component B) is caustic before curing, so government health and safety directives and packaging guidance must be followed at all times.

Choosing the Right Partner for Application

Products like ASODUR-SG2 perform best when applied by experienced hands. Working with established waterproofing companies in Pakistan ensures the surface preparation, mixing ratios and application timing are all handled correctly which matters even more on oil-contaminated substrates where small mistakes can compromise the entire coating system. Aquafin Pakistan supplies ASODUR-SG2 along with technical guidance for projects throughout the country.

Frequently Asked Questions (FAQs)

Q1: Is ASODUR-SG2 only for oil-contaminated floors?

No — while it’s specifically formulated for oil-contaminated concrete, it’s also used as a primer on still-damp concrete or screed before applying ASOFLOOR coating systems.

Q2: Why is it important to keep the surface wet during application on oily floors?

If the cleaned surface dries out, residual oil rises back to the surface and prevents ASODUR-SG2 from bonding properly.

Q3: What is the mixing ratio for ASODUR-SG2?

The mixture ratio is 100:12 parts by weight (resin to hardener).

Q4: Can ASODUR-SG2 be applied by spraying?

Yes, it can be rolled, sprayed or painted onto the surface in a single coat.

Final Thoughts

ASODUR-SG2 fills a very specific but important gap in flooring and waterproofing work bonding reliably to oil-contaminated and damp concrete surfaces where standard primers fail. With its high-density epoxy formulation, proven vapour barrier function and strong mechanical performance, it gives contractors a dependable foundation for long-lasting flooring systems.

Dealing with oily or persistently damp concrete floors? Get in touch with Aquafin Pakistan for expert advice and reliable supply of ASODUR-SG2.

Visit www.aquafinpakistan.com to learn more or request a consultation.