Technical data sheet ASODUR®-SG2 Special epoxy resin primer, oil and vapour barrier
Material number
Contents
Unit of quantity
Packaging
Colour
205655011
28
KG
Set
light grey
205655001
15
Combination packs
205655004
5
205655902
2
205655006
Areas of application / surface protection As a special primer for oil contaminated, cleaned concrete substrates as a primer for concrete/bonded screed surfaces that are still matt damp with subsequent covering as a primer under cementitious levelling compounds as capillary-breaking joint sealing in pool edges as protection against osmosis bubbles with rear moisture exposure
Product features moisture-compatible and diffusion-blocking Radon tight Low solvent
Advantages Barrier against capillary rising oils very good adhesion on damp concrete substrates Displaces water from the capillary structure of the concrete in the surface area Watertightness against negative pressing water up to 3 bar
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10/04/2025
Technical data sheet ASODUR®-SG2 Existing test certificates Radon-tightness Investigation report 20-20 Water vapour permeability in accordance with DIN EN ISO 7783-2
Technical Data Material properties Product components Base material Consistency Density, ready to use product (ISO 1183-1) Flexural strength (DIN EN 196-1) Compressive strength (DIN EN 196-1) Tensile adhesion strength (concrete, dry until matt damp) Viscosity, ready to use product [DIN discharge cup] Water vapour permeability, SD value Watertightness against negative pressing water Classification of the reaction to fire in accordance with DIN EN 13501-1
2 component system Epoxy resin Liquid approx. 1.86 g/cm³ approx. 42 N/mm² approx. 100 N/mm² ≥ 1.5 N/mm² approx. 70 seconds in DIN outlet cup > 100 m (class III after DIN 1504-2) to 3 bar Efl
Mixing Mix ratio, component A Mix ratio, component B Mix ratio capillary-breaking grout (quartz sand Ø 0.5 - 1.0 mm) Mixing time
100 weight proportion 12 weight proportion approx. 1 weight proportion approx. 3 minutes
Application Substrate temperature Max. relative humidity Pot life Minimum reaction temperature Mixing method, machines, tools Consumption Overcoat after (min.) Consumption (capillary-breaking mortar per mm layer thickness) Foot traffic after Application temperature Hardening time / full resilience
approx. 10 - 35 °C 80 % approx. 60 minutes min. 10 °C Drill with stirrer approx. 0.60 - 1.00 kg/m² after 12 hours approx. 2.2 kg/m² approx. 12 hours approx. 10 - 35 °C approx. 7 days
Processing equipment Aids/tools Colour roller Primer brush Stirrer (approx. 300 rpm) Circular cage Nylon fur roller (6mm) with textured polyamide cover Rubber lip slider
Manual processing distributable with rubber lip slider Distributable with nylon fur roller
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Technical data sheet ASODUR®-SG2 Suitable covering Floor coverings
Preparing the substrate Requirement for substrate 1. Firm 2. Free of adhesion inhibiting substances 3. Grippy 4. Load-bearing 5. Dry to damp (in accordance with DAfStB “Guideline for protection and maintenance of concrete parts”)
Measures for substrate preparation Substrate preparations must be carried out in compliance with DIN EN 14879-1:2005, 4.2 et.seq.
Substrate quality class
Oil contaminated surfaces 1. Following successful substrate preparation, pre-treat the surfaces concerned with the cleaning material ASO®-R008 (dilution in accordance with the technical data sheet of ASO®-R008). 2. Clean the treated surfaces with warm water (approx. +50 °C to +70 °C). 3. Remove excess water with suitable suction equipment. 4. Apply ASODUR®-SG2 by brush and roller. 5. Please note: No sealed water film may be present on the surface of the concrete! The substrate may not be dried off; drying off results in the danger that rising oil could negate bonding of the special primer to the substrate. 6. The still fresh primer is sprinkled with quartz sand (Ø 0.5-1.0 mm) covering the whole area.
Application Mixing 1. The (ideal) material temperature during the mixing procedure is +15 °C. 2. Mix the resin homogeneously in the original container. 3. Add the hardener to the resin. 4. The hardener must run completely out of the container. 5. Mix thoroughly with the mixer until a homogeneous consistency. 6. The hardener must be distributed evenly. 7. The mixing time is ca. 3 minutes. 8. Decant the mass into a clean bucket. 9. Stir carefully again. 10. When adding quartz sands, make sure that they are kiln-dried and, like other aggregates, also have a temperature of approx. +15 °C.
Application 1. ASODUR®-SG2 is applied generously to the prepared substrate with a suitable tool. 2. Meticulously brush into the surface area with a primer brush. 3. Roll on evenly with a short-pile fur roller. 4. The fresh primer is sprinkled with quartz sand (Ø 0.5-1.0 mm) to cover the entire surface. 5. After the sanded layer has cured, the unbound quartz sand is meticulously removed before the next application step. 6. After a waiting time of approx. 12 to 24 hours, work can continue with an ASODUR® coating system or the floor covering structure.
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Technical data sheet ASODUR®-SG2 Capillary-breaking joint filler 1. Add the quartz sand (Ø 0.1 - 0.6 mm) in the predetermined quantity (1:1) to the forced paddle mixer. 2. Then add the mixed resin mixture. 3. Mix the liquid and solid components evenly. 4. Prime the substrate with ASODUR-SG2. 5. Pour in the mortar mixture while still wet and spread and compact evenly. Consumption of mixture approx. 2.2 kg/l.
Cleaning tools Clean tools immediately after use with ASO-R001.
Storage conditions Storage Store in a frost-free, cool and dry place. At min. 10 - 25 °C for 24 months in the original canister. Promptly use opened container.
Disposal Hardened product leftovers can be disposed of in accordance with disposal code AVV 15 01 06.
Notes The indicated consumption quantities are calculated values without additions for textured surface roughness and absorbency, level compensation and residual material in the container. We always recommend a calculated safety addition of 10% on top of the calculated consumption quantities. Higher temperatures shorten the pot life. Lower temperatures increase the application and hardening times. The rate at which material is consumed also increases at lower temperatures. The bonding between the individual layers can be strongly disrupted between the individual application steps due to the effects of dampness and contamination. Coating work requires a substrate temperature of at least 3 °C above the dew point temperature. If longer waiting times arise between the individual application steps or surfaces that have already been treated with liquid resin are coated again after an extended period of time, the old surface must be well cleaned and thoroughly roughened. Then apply a complete pore-free new coating. Ensure there is good ventilation during the drying and hardening phases. After they have been applied, surface protection systems must be protected against dampness (e.g. rainwater, condensation water) for approx. 4–6 hours. Moisture causes a white colour and/or stickiness on the surface and can cause problems during hardening. Discoloured and/or sticky surfaces must be removed and reworked, e.g. through grinding or shot blasting. If ASODUR®-SG2 is used as a vapour barrier under conventional floor coverings, e.g. PVC, linoleum, carpet and parquet, then no adhesive containing solvents may be used. This leads to persistent buckling in the applied floor covering. If organic acids (e.g. propionic acid) are used or present in mobile silo systems, ASODUR®-SG2 must not be used as the sole waterproofing and surface protection measure. ASODUR®-SG2 must be coated with a top coat adapted to the usage requirements. Observe the technical data sheets of the products mentioned before starting work. Applications that have not been clearly mentioned in this technical data sheet may only be carried out after the technical service department of SCHOMBURG GmbH has been consulted, and after the said department has approved of such a course of action in writing. For detailed information on application, read and observe supplementary technical information no. 19 "Applying ASODUR® products".
Relevant regulations The recognised standards of construction engineering, the relevant guidelines and current regulations must be observed. Observe applicable safety data sheet! GISCODE: RE 90
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Technical data sheet ASODUR®-SG2 Explanations Conformity / Declaration / Verification
The rights of the buyer with regard to the quality of our materials are based on our terms and conditions of sale and delivery. Our technical advice team will be happy to advise you in the case of requirements that exceed the scope of the application described here. In order to be binding, a legally binding written confirmation is required. The product description does not release the user from a duty of care. Lay a test area in the event of uncertainty. This version becomes invalid in the event of a new version being issued.
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