PPG SigmaZinc 158 is impact and abrasion resistant, withstand temperatures of up to 400°C as well as freezing temperatures down to -90°C, the overall system can resist heats of up to 520°C.
PPG SigmaZinc 158 is a two component moisture curing zinc ethyl silicate primer that offers anti-corrosive protection to structural steel and is suitable for use as a system primer in various different paint systems based on unsaponifiable binders.
PPG SigmaZinc 158 offers excellent resistance to impact, abrasion and heat and works to withstand temperatures of up to 400°C under normal atmospheric conditions as well as freezing temperatures down to -90°C. When used with the right topcoat, the overall system can resist heats of up to 520°C.
PPG SigmaZinc 158 can be applied using spray, brush or roller and offers excellently fast drying properties to minimise downtime in working environments. SigmaZinc 158 is touch dry after just 30 minutes and can be overcoated after an interval of 12 hours has elapsed.
Surface and Environment
PPG SigmaZinc 158 is designed for used as a priming coating on structural steel and is highly protective in conditions and environments where protection to the surface is of high importance to prevent damages occurring. If you require more information on the uses of this product then please contact our technical support team who will be more than happy to help you.
Certificates & Approvals
- Certificate for ASTM A-490 class 'B' for slip coefficient
- Complies with SSPC-Paint 20
- Anti corrosive primer for structural steel
- Suitable as a system primer in various paint systems based on unsaponifiable binders
- Galvanic action eliminates sub film corrosion
- Can withstand substrate temperatures from -90°C up to +400°C, under normal atmospheric exposure conditions
- When suitably topcoated provides excellent corrosion protection for steel substrates up to +520°C.
- Good low temperature curing
- Good impact and abrasion resistance
- Must not be exposed to alkaline (more than pH 9) or acidic (less than pH 5.5) liquids
|Type:||Miosture-curing Zinc (ethyl) silicate Primer|
|Stock Colours:||Grey, Greenish Grey|
|VOC Content:||507.0 g/l|
|Volume Solids:||65 +/- 2%|
|Suitable Substrates:||Structural Steel|
|Application Method:||Air Spray, Airless Spary. Use of Brush for touch up and spot repair only. Roller not recommended|
|Theoretical Coverage:||8.7 m2 per litre at 75 microns|
|Wet Film Thickness (WFT):||-|
|Dry Film Thickness (DFT):||75 - 100 microns (3.0 - 4.0 mils) depending on system|
|Pot Life:||12 hours at 20°C|
|Touch Dry:||30 minutes at 20°C|
|Overcoatable:||After minimum 12 hours at 20°C|
|Fully Cured:||12 hours at 20°C|
|Cleaner / Thinner:||Thinner 90-53|
|Shelf Life:||years from date of production unopened|
|Packaging:||Available in 18.5 Litres|
The manufacturers data sheets are available for download from this website. It is your responsibility to read and understand all aspects of the data sheets before you place an order and prior to application. Please pay special attention to the preparation, mixing and application temperatures of the product, cleaning of substrate and environmental factors such as temperature, rain etc. Quoted coverage rates are based on the manufacturers theoretical rates and may vary depending upon substrates absorption, texture and application. We always recommend a test is carried out to ensure suitability.
Customer further agrees that Promain have no liability for any errors or omissions contained within the Product Data Sheets and are not liable for failure due to misapplication or inadequate substrate cleaning and preparation. For more information please refer to our Terms & Conditions.