Chemtech GM Two-Component Solvent-Free Polyamine-Cured Epoxy Coating is an epoxy coating used as a primer. Specifically a lining coating for the lower part of tanks, used as a secondary sealing membrane. It can be used as a primer, intermediate coat or topcoat in atmospheric and immersed environments. Parameters on this page: volume solids 100%, dry film thickness 1000-3000 µm, theoretical spreading rate 1-0.33 m²/L. Comparable models from the same brand: Jotaguard 100 two-component solvent-free polyamine-cured epoxy coating, Jotamastic Plus amine-cured surface-tolerant epoxy coating, Jotamastic Smart Pack Alu aluminium paint.
Parameter source: JOTUN original technical data sheet (TDS) for Chemtech GM Two-Component Solvent-Free Polyamine-Cured Epoxy Coating; spreading rate and other values are converted from TDS parameters and provided for product selection reference only.
The above content is compiled from the manufacturer's datasheet and this site's parameter tables. For selection, coating systems and lead times, pleaseContact Usfor confirmation.
This page carries the full TDS for this product, translated from the manufacturer's original document. No file download is needed; for an original-language copy, send an enquiry.
| Volume Solids | 100% |
|---|---|
| Dry Film Thickness | 1000–3000 µm |
| Theoretical Spreading Rate | 1-0.33 m²/L |
| VOC | 113 g/L (US) |
| Density / Specific Gravity | 0.8 kg/L |
| Number of Components | Two-component |
| Thinner | Jotun Thinner No. 23 |
| Mixing Ratio | 2.5 parts : 1 part (by volume) |
| Gloss | Gloss (70–85) |
For more Q&A on selection, application, acceptance and defect diagnosis, seeFAQsection.
Chemtech GM
It is a two-component solvent-free polyamine-cured epoxy coating. Specifically a lining coating for tanks, used with glass fibre sheets. It can be used as a primer, intermediate coat or topcoat in atmospheric and immersed environments. Suitable only for properly prepared carbon steel substrates.
Specifically a lining coating for the lower part of tanks, used as a secondary sealing membrane. Suitable for maintenance and major repair.
Others
Colourless, white
| Property | Test / Standard | Description |
| Volume Solids | ISO 3233 | 100% |
| Gloss (GU 60°) | ISO 2813 | Gloss (70–85) |
| Density | Theoretical Value | 0.8 kg/L |
| Region | Regulations | Test / Standard | VOC Value |
| US | CARB(SCM)2020 / SCAQMD rule 1113 | Calculation | 113 g/L |
| Hong Kong | Air Pollution Control (VOC) Regulation | Calculation | 113 g/L |
| EU | European Paint Directive 2004/42/CE | Calculation | 113 g/L |
The data listed are based on factory batch production and may vary slightly with colour.
| Gloss description | According to JOTUN's definition of functional coatings |
|---|
Typical recommended specification range
| Dry Film Thickness | 1000–3000 µm |
| Wet Film Thickness | |
| Theoretical Spreading Rate | 1-0.33 m²/L |
Surface Preparation
| Substrate | Minimum | Recommended |
| Carbon Steel | Cleanliness and surface roughness to Sa 2½, medium to rough G (ISO 8503-2) | |
This product may be applied by the following methods
Refer to the application manual.
| Chemtech GM Comp A | 2.5 parts |
| Chemtech GM Comp B | 1 part |
| Thinner: | Jotun Thinner No. 17 | /Jotun Thinner No. 23 |
| JOTUN Thinner No. 17 | JOTUN Thinner No. 23 |
| Nozzle tip size (inch/1000): | 25-31 |
| Nozzle pressure (minimum): | 200 bar/2900 psi |
| Substrate Temperature | 10 °C | 23 °C | 40 °C |
| Touch Dry | 14 h | 7 h | 5 h |
| Walk-on Dry | 26 h | 12 h | 7 h |
| Minimum recoat interval | 26 h | 12 h | 7 h |
| Dry/cured to service | 14 days | 7 days | 3 days |
For the maximum recoat interval, refer to the Application Guide (AG) for this product.
Drying and curing times are determined based on temperature and relative humidity below 85%, with dry film thickness within the average range.
| Touch Dry | The state at which light finger pressure leaves no mark or stickiness. |
|---|---|
| Walk-on Dry | The minimum time after which the coating allows normal foot traffic without leaving permanent footprints, marks or other physical damage. |
Minimum recoat interval after drying: the recommended minimum interval before applying the next coat.
Dry/cured to service: the minimum time before the coating can be permanently exposed to a specific environment/medium.
| Paint temperature | 23 °C |
| Pot Life | 30 min |
Temperature
| Drying, atmospheric | Continuous 120 °C | Peak 120 °C |
| Immersed, sea water | 70 °C | |
For more detailed resistance information, see the Industrial Protective Products Resistance List on the JOTUN website, or contact your local JOTUN office.
Withstands peak temperatures for a maximum of one hour.
At the above temperatures, protective performance is unaffected, but appearance may be affected.
Note: this coating can withstand different immersion temperatures, depending on the specific chemical and whether immersion is continuous or intermittent. Heat resistance is affected by the coating system as a whole. When used with other coatings, ensure that all coatings in the system have similar heat resistance.
Depending on the actual exposure conditions in service, this product may be used with various primers and topcoats. Some reference systems are listed below. For specific systems, contact JOTUN.
| Previous coat: | Epoxy |
| Subsequent coat: | Epoxy |
Tankguard Holding Primer can be used for short-term protection and is fully compatible with the tank coating system.
| Volume | Container Size | |
| (L) | ||
| Chemtech GM Comp A | 10 | 20 |
Chemtech GM Comp B 4 5. The packaging sizes above are typical reference sizes for factory batch production. Packaging sizes and capacities may vary by region due to differences in local regulations.
Store in accordance with national regulations. Keep containers in a dry, cool, well-ventilated place away from heat and sources of ignition. Keep containers tightly closed. Handle with care.
| Chemtech GM Comp A | 24 months |
| Chemtech GM Comp B | 24 months |
In some markets, the stated shelf life may be shortened to comply with local legal requirements. The above is the minimum shelf life; thereafter, testing is required to confirm quality remains acceptable.
For professional use only. Applicators and workers must be trained, experienced, capable and equipped to mix, stir and apply the coating correctly in accordance with JOTUN's technical documents. Applicators and workers must wear appropriate personal protective equipment when using this product. This guidance is provided based on current product knowledge. Any proposed modification to suit site conditions must be approved by the responsible JOTUN representative before use.
Read the safety warnings on the container packaging. Use in well-ventilated conditions. Avoid inhaling spray mist and avoid skin contact. In case of accidental splashes on skin, wash immediately with a suitable cleaner, soap and water. In case of eye contact, rinse thoroughly with water and seek medical attention immediately.
When used primarily as a primer or antifouling coating, products may show slight colour variation from batch to batch. Such products, and epoxy products used as topcoats, may chalk when exposed to sunlight.
Gloss and colour retention of topcoats depend on the colour type, the surrounding environment such as temperature and UV intensity, application quality and product type. Contact your local JOTUN office for further information.
The information in this datasheet is based entirely on knowledge gained in our laboratory and in practice. JOTUN products are regarded as semi-finished products, and their use is generally beyond our control. JOTUN therefore guarantees only the quality of the product itself. To comply with local regulations, the product may be adjusted, and we reserve the right to modify the datasheet without further notice.
Users should consult JOTUN for specific guidance on the suitability of the product for their requirements and applications.
In case of any discrepancy between language versions, the English (UK) version shall prevail.
Information is subject to the manufacturer's latest version; the manufacturer's latest TDS prevails.
The technical parameters on this page are taken from the product's original manufacturer technical datasheet, the copyright of which belongs to the manufacturer. If a rights holder considers the presentation inappropriate, contact us for verification and handling.
Packaging specifications and batch lead times are subject to actual availability. PleaseContact Uscontact us for project-based calculation.
