It is ideal to sew filters used in wet filtration of car paints as well as for workwear worn in this critical area. Gral SIF is tested and approved to ensure that paint-wetting impairment substances are tested below approved spectroscopic trace levels. Silicone contamination can result in surface defects on automotive paint coat surfaces.
Gral SIF is made from pre-stabilized high tenacity continuous filament polyester that is specially lubricated to deliver outstanding sewing performance in the most demanding applications. Discover how Gral SIF can enhance your products with our product information sheet or by contacting one of our experts.

Why Choose Coats Gral™ SIF?
- Free of contaminating substances like oils, greases, graphite, waxes, paraffin etc. and with silicon traces tested and approved in accordance with <0.05 ppm automotive industry norms
- Made from pre-stabilised high tenacity continuous filament polyester that is specially lubricated to deliver outstanding sewing performance in the most demanding applications
- Coats Gral SIF sil free products are different from NS (non-silicone) products available in the market, which may not use silicone for lube finishes but, which may contain <0.05 pm silicone spectroscopic traces
- OEKO-TEX® STANDARD 100, Product Class I

Main Uses
- Automotive
- Other paint shop products
- Paint shop filters
- Paint shop garments
- Paint shop gloves

Gral
Coats® Gral™
A lubricated polyester thread made from pre-stabilised high tenacity continuous filament polyester.
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Gral
Coats® Gral™ AS
Minimise the attraction of down towards the needle, helping to prevent down leakage through needle holes.
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Gral
Coats® Gral™ AST Anti-static
Features a metallic conductive component which detracts electrical charge to prevent static build-up.
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Gral
Coats® Gral™ AWF (Apparel Sizes)
A specially formulated finish that delivers a high degree of water resistance.
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Gral
Coats® Gral™ AWF (Coarse Sizes)
Delivers near water-resistant and abrasion-resistant seams, making it an excellent choice.
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Gral
Coats® EcoVerde™ Gral™
A lubricated polyester thread made from 100% recycled pre-stabilised high tenacity continous filament polyester.
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Gral
Coats® EcoVerde™ Gral™ AS for Apparel
A lubricated polyester thread made from 100% recycled high tenacity continuous filament polyester.
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Gral
Coats® EcoVerde™ Gral™ for Apparel
A lubricated polyester thread made from 100% recycled pre-stabilised high tenacity continous filament polyester.
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Gral
Coats® Gral™ for Apparel
A continuous filament polyester thread made from pre-stablised high tenacity polyester.
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Gral
Coats® Gral™ Multicolour
An attractive and varied multicolored continuous filament polyester sewing thread for eye-catching stitching.
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Gral
Coats® Gral™ Protect
Sewing thread is treated with an innovative process to give the finished thread anti-microbial properties.
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Gral
Coats® Gral™ Plus
A high elongation continuous filament polyester thread with excellent abrasion resistance property.
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Gral
Coats® Gral™ Quilt
Multi-needle quilting operations in the bedding and mattress sector
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Gral
Coats® EcoVerde™ Gral™ Quilt
A specially finished 100% recycled polyester thread made from pre-stablised high tenacity continuous filament polyester.
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Gral
Coats® Gral™ Suture
A lubricated polyester thread made from pre-stablised high tenacity continuous filament polyester.
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Since conditions and applications vary considerably in the use of a product, the customer and/or user should assure herself or himself that the product meets end customer requirements and is suitable for the intended end use. Coats accepts no liability for unsuitable or improper use or application of products.
Information provided above is based on current averages and should be taken only as indicative. Coats accepts no liability for the preciseness and correctness of the information provided.
Product information sheets are updated from time to time, please be sure you are referring to the most recent publication. Coats supports customers with advice on individual applications on request; if you have any questions or concerns, please. contact us.