Introduction

Oil-contaminated concrete floors and rising dampness are two of the trickiest problems in industrial and commercial flooring projects. Standard coatings often fail on such surfaces because oil residues and moisture prevent proper bonding. This is where ASODUR-SG2 steps in as a highly specialized solution.

Manufactured by SCHOMBURG, ASODUR-SG2 is a primer designed specifically for oil-contaminated concrete floors and functions effectively as a vapour barrier. For anyone researching dependable waterproofing products, a proven vapour barrier, or working with established waterproofing companies across Pakistan — including waterproofing in Karachi and waterproofing in Lahore — ASODUR-SG2 offers a technically proven primer system built for demanding substrate conditions.

In this blog, we’ll walk through what ASODUR-SG2 is, how it works, where it’s applied and the technical details you need to know before specifying it on your next project.

What is ASODUR-SG2?

ASODUR-SG2 is a low solvent, moisture-resistant, two-component epoxy resin primer. Its defining characteristic is high density, which allows it to displace water from the capillaries of concrete floors while acting as a protective barrier against capillary rising oil and other chemical substances.

Because of this unique property, ASODUR-SG2 is resistant to chemicals rising from the soil and offers excellent bonding even on wet concrete surfaces — a challenge that many standard primers cannot overcome.

Key Properties

  • Low solvent, moisture-resistant, two-component epoxy resin
  • High density formulation that displaces water from concrete capillaries
  • Acts as a protective barrier against capillary rising oil and chemical substances
  • Resistant to chemicals rising from the soil
  • Excellent bonding performance on wet concrete surfaces

These properties make ASODUR-SG2 particularly effective as both a water stopper against rising moisture and a primer that prepares problematic substrates for further coating systems.

Areas of Application

ASODUR-SG2 is specifically used as:

  • A primer for oil-contaminated, but cleaned, concrete surfaces

This makes it especially valuable in industrial settings such as workshops, factories, parking structures and warehouses where floors are frequently exposed to oils, lubricants and ground moisture.

Surface Preparation

Proper surface preparation is critical for ASODUR-SG2 to perform as intended, especially on oil-contaminated surfaces.

For Oil-Contaminated Surfaces:

  1. Clean the surface with an emulsifying cleaning agent in accordance with the application instructions.
  2. Subsequently clean the surface with a high-pressure water jet pump.
  3. Apply ASODUR-SG2 with a roller or brush while the surface is still wet — a closed film of water may not be present on the surface at the time of application.

Important: If the surface is allowed to dry after the cleaning step, oil will rise back to the surface and prevent proper bonding of ASODUR-SG2. Oil-contaminated surfaces are particularly problematic and SCHOMBURG recommends contacting their Technical Services Department for guidance on especially challenging conditions.

Product Preparation and Mixing

ASODUR-SG2 comes as a two-component system (Component A and Component B) delivered in a predetermined mixing ratio. The correct mixing procedure is as follows:

1. Tip Component B into Component A, ensuring the hardener drains completely from its container.

2. Mix the components using a suitable mixer at 300 rpm.

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

4. Stir until the mixture is homogeneous — mixing time is approximately 5 minutes.

5. The minimum temperature during mixing should be around +15°C.

6. Decant the mixed material into a clean container and mix through thoroughly once again.

Method of Application and Consumption

ASODUR-SG2 can be applied by rolling, spraying, or painting onto the surface in a single coat. For surfaces requiring a broadcast finish, quartz sand (grain size 0.7–1.2 mm) can be broadcast into the wet priming coat.

Once the coating has cured, all unbonded broadcast material must be thoroughly removed before applying the finish coat.

Consumption rates are as follows:

  • ASODUR-SG2: between 600 and 1,000 g/m², depending on surface condition
  • Quartz sand broadcast: approximately 1.5 kg/m²

Packaging and Storage

ASODUR-SG2 is available in 15 kg packaging, with 5 kg containers available on request. Component A (resin) and Component B (hardener) are supplied in the predetermined mixture ratio.

Storage: Store both components separately for at least 12 months. The regulations for storage of water-endangering goods must be observed, along with the guidance provided in the EC data sheet.

Cleaning tools: Clean tools immediately after use with AQUAFIN-Cleanser.

Health and Safety

Once fully cured, ASODUR-SG2 is harmless. However, the hardener (Component B) is caustic and government health and safety protective directives, along with the advice provided on the product packaging, must always be observed during handling and application.

Important Application Advice

  • Surface protection systems must be protected from moisture (rain, meltwater) for 4 to 6 hours after application.
  • Dampness during this curing window can cause white discolouration and/or stickiness on the surface and may also create difficulties in hardening. If this occurs, the surface should be abraded and renewed.
  • Cured product residues must be disposed of under waste disposal code 57 123 (epoxy resin).

Why Choose ASODUR-SG2 from Aquafin Pakistan?

For projects dealing with oil-contaminated flooring or challenging damp substrates, working with experienced waterproofing companies in Pakistan makes all the difference. Aquafin Pakistan supplies ASODUR-SG2 along with the technical support needed to correctly assess substrate condition, prepare surfaces and apply the primer for long-lasting performance — whether the project is located in waterproofing in Karachi, waterproofing in Lahore, or anywhere else across the country.

Frequently Asked Questions (FAQs)

Q1: What is ASODUR-SG2 primarily used for?

ASODUR-SG2 is used as a primer for oil-contaminated but cleaned concrete surfaces and for priming damp concrete or screed surfaces before applying ASOFLOOR coating systems.

Q2: Can ASODUR-SG2 be applied on wet concrete?

Yes, ASODUR-SG2 offers excellent bonding on wet concrete surfaces, which is one of its key advantages over standard primers.

Q3: What happens if the surface dries before applying ASODUR-SG2 on oil-contaminated floors?

If the surface dries after cleaning, oil will rise back to the surface and prevent proper bonding of the primer. It’s important to apply ASODUR-SG2 while the surface is still wet.

Q4: How long does ASODUR-SG2 take to cure?

It is fully cured after 7 days at +23°C, with foot traffic possible after approximately 12 hours at the same temperature.

Q5: What is the coverage rate of ASODUR-SG2?

Consumption ranges between 600 and 1,000 g/m², depending on the surface condition.

Conclusion

ASODUR-SG2 is a highly specialized epoxy primer engineered to solve one of the most persistent flooring challenges: bonding to oil-contaminated and damp concrete surfaces. With its proven vapour barrier performance, strong mechanical properties and reliable adhesion even under difficult site conditions, it’s a smart choice for industrial flooring projects that demand durability from the ground up.

Dealing with oil-contaminated floors or persistent dampness issues? Reach out to Aquafin Pakistan for expert guidance and reliable supply of ASODUR-SG2 and related waterproofing solutions.

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