SIGMAWELD 165

SIGMAWELD 165

SIGMAWELD 165

Product catalog summary
Product Overview: SIGMAWELD 165 is a two-component moisture-curing zinc (ethyl) silicate prefabrication primer. It is suitable for automatic application on shot-blasted steel plates and offers fast drying properties, good cutting, and excellent welding properties, including MIG/MAG welding. It provides corrosion protection for up to 9 months when applied at a dry film thickness (dft) of 13 μm.
Principal Characteristics: The primer is suitable for sea water immersion with controlled cathodic protection systems and has excellent thermal stability. It prevents weld spatter adherence and is approved by Lloyd's Register of Shipping.
Basic Data: The mass density is 1.4 g/cm³, with volume solids of 30 ± 2%. The VOC content is a maximum of 428 g/kg. The recommended dft is 13 μm, with a theoretical spreading rate of 20 m²/l. Touch dry times vary with temperature, and the shelf life is at least 9 months for the binder and 12 months for the paste.
Recommended Substrate Conditions: The substrate should be shot blasted to a profile above 13 μm. The temperature should be up to 50°C, with a recommended 30°C for automatic application. Relative humidity during curing should be between 50% and 85%.
Mixing and Application: The mixing ratio by volume is 55:45 (binder to paste). The mixture should be stirred thoroughly and strained through a 30-60 mesh screen. Thinner 90-53 may be added as needed. Application can be done via air spray or airless spray, with specific nozzle orifice and pressure recommendations.
Safety Precautions: The product is solvent-borne, and precautions should be taken to avoid inhalation and contact with skin or eyes. Safety sheets provide further guidance.
Warranty and Liability: PPG provides a warranty on the product's title and quality but disclaims other warranties. Liability for indirect or consequential damages is limited.
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Catalog excerpts

SIGMAWELD 165-1

two component moisture curing, zinc (ethyl) silicate prefabrication primer PRINCIPAL CHARACTERISTICS – suitable for automatic application on shot blasted steel plates – fast drying properties – good cutting and excellent welding properties, including MIG/MAG welding in various positions (either automatic or manual welding) – provides corrosion protection up to 9 months, when applied at a dft of 13 μm (depending on exposure conditions and blasting prole) – can be used as a rst coat in various paint systems – suitable for sea water immersion in combination with controlled cathodic protection systems – excellent thermal stability minimizes heat damage during hot work procedures – no adherence of weldspatter at surrounding primed surface – approved by Lloyd's Register of Shipping for use as prefabrication primer (see sheet 1880) – COLOURS AND GLOSS grey, reddish grey – at BASIC DATA AT 20°C (1 g/cm³ = 8.35 lb/US gal; 1 m²/l = 40.7 ft²/US gal) (data for mixed product) Mass density Volume solids VOC (Supplied) Recommended dry lm thickness Theoretical spreading rate Touch dry after Overcoating interval Shelf life (cool and dry place) 1.4 g/cm³ 30 ± 2% max. 428 g/kg (Directive 1999/13/EC, SED) max. 645 g/l (approx. 5.4 lb/gal) 13 μm - see further: "Recommended substrate conditions and temperatures" 20 m²/l for 13 μm 6 min. at substrate temperature of 20°C 3 min. at a substrate temperature of 40°C min. 3 days max. 9 months longer overcoating intervals can be permitted when primer is still in sound condition (data for components) binder: at least 9 months paste: at least 12 months

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SIGMAWELD 165-2

RECOMMENDED SUBSTRATE CONDITIONS AND TEMPERATURES – on steel blasted to above prole, the recommended dft, 13 μm, corresponds to 15 μm as measured on a smooth test panel – minimum thickness for a closed lm is 13 μm measured on a smooth test panel – substrate temperature may be up to max. 50°C – for automatic application a substrate temperature of 30°C is recommended – depending on exact substrate temperature and actual condition on side a different thinner may be required – substrate temperature at least 3°C above dew point – relative humidity during curing should be above 50% and below 85% –...

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SIGMAWELD 165-3

mixing ratio by volume: binder to paste 55 : 45 – the temperature of the mixture of binder and paste should preferably be above 15°C – stir the paste thoroughly before adding the binder – add gradually one third of the binder to the pigment paste – stir thoroughly till homogeneous – add remaining binder and continue stirring until the mixture is homogeneous – strain mixture through a 30 - 60 mesh screen – mixed paint is ready for use – some addition of thinner (Thinner 90-53) might be necessary depending on routing, line speed and steel temperature – agitate continuously during application 24...

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SIGMAWELD 165-4

SAFETY PRECAUTIONS Conversion tabels Explanation to product data sheets Safety indications Safety in conned spaces and health safety Explosion hazard - toxic hazard Cleaning of steel and removal of rust Specication for mineral abrasives Relative humidity - substrate temperature air temperature see information sheet 1410 see information sheet 1411 see information sheet 1430 see information sheet 1431 see information sheet 1490 see information sheet 1491 see information sheet 1650 – for paint and recommended thinners see safety sheets 1430, 1431 and relevant material safety data sheets – this is...

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SIGMAWELD 165-5

WARRANTY PPG warrants (i) its title to the product, (ii) that the quality of the product conforms to PPG’s specications for such product in effect at the time of manufacture and (iii) that the product shall be delivered free of the rightful claim of any third person for infringement of any U.S. patent covering the product. THESE ARE THE ONLY WARRANTIES THAT PPG MAKES AND ALL OTHER EXPRESS OR IMPLIED WARRANTIES, UNDER STATUTE OR ARISING OTHERWISE IN LAW, FROM A COURSE OF DEALING OR USAGE OF TRADE, INCLUDING WITHOUT LIMITATION, ANY OTHER WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE OR USE, ARE...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.