
GP Thinners is Sierra's premium all purpose paint thinner for spray painters and workshops, in 20 L drums and 200 L drums.
What it does
Sierra calls GP Thinners a premium, all purpose thinner and says it suits every paint type. The SDS shows a blend of toluene, light aliphatic naphtha, acetone and a little ethanol, with a boiling range of 50 to 166°C. The low boiling fraction flashes off quickly while the heavier part keeps the film wet long enough to flow. It reduces paint for spraying and doubles as a clean up solvent for guns and tools.
Where to use it
Automotive refinishers, fabrication and maintenance painters, sign shops and manufacturers with spray lines. At the mixing bench and for cleaning painting equipment. Part of our solvents and thinners range.
How to use
- Check the paint maker's data sheet for the thinning rate, then add thinner gradually and stir.
- Test spray a scrap panel and adjust.
- Clean guns and cups by spraying a little thinner through into a closed waste container until it runs clear.
- Keep the drum closed and earthed when decanting.
Safe on / avoid
Use with the paints you are reducing, over metal or primed surfaces. Two pack and specialty systems may need their own thinner, so check the paint maker's instructions. It softens cured paint, plastics and rubber, so keep it off finished surfaces and test seals. Read the Safety Data Sheet before use.
Specifications
| Property | Value |
|---|---|
| Appearance | Colourless Liquid |
| Odour | Characteristic |
| Flash point | -30°C (closed cup) |
| Boiling point | Typical 50 to 166°C |
| Specific gravity | Typical 0.78 to 0.82 g/ml at 15°C (density) |
| Solubility in water | 80 g/l approx |
| Dangerous goods | Class 3, UN 1993, PG II |
| Poisons schedule | Schedule 6 |
Pack sizes and delivery
Choose the 20L Drum or the 200L Drum to match your usage. Freight is quoted to your postcode at checkout. Dangerous goods freight applies.
▸What does GP stand for in GP Thinners?
General purpose. Sierra sells it as an all purpose thinner.
▸Can GP Thinners clean spray guns?
Yes, it works as a clean up solvent. For cleaning jobs, Gun Wash Thinners is the recycled, lower cost choice.
▸Will it work with two pack paint?
Sierra says it suits all paint types, but always follow the two pack maker's specified thinner.
▸Why is GP Thinners Schedule 6?
The SDS lists Schedule 6 for this toluene and acetone blend. Store it locked up.
DANGER Highly flammable liquid and vapour (H225). Swallowing it can kill if the liquid gets into the lungs (H304). Causes serious eye irritation (H319). Causes skin irritation (H315). May cause drowsiness or dizziness (H336). May damage organs with prolonged or repeated exposure (H373). Suspected of damaging the unborn child (H361). Harmful to aquatic life, with lasting effects (H412).
- PPE: Safety goggles and gloves that stand up to solvents (nitrile when handling is prolonged, PVC or neoprene against splashes). Where vapour could pass the exposure standard, an organic vapour respirator to AS1716.
- Handling and storage: Highly flammable. Work with good ventilation and keep it away from heat, sparks, flames and direct sun. Earth and bond drums and gear during transfer, since static can light the vapour. Keep it apart from strong oxidants, aerosols and corrosives.
- First aid: Swallowed: do not make the person vomit, get medical help. Eyes: hold the lids apart and rinse with running water for 15 minutes or more. Skin: take off soaked clothing, wash with water and then soap. Inhaled: get them into clean air and let them rest. Poisons Information Centre 13 11 26.
- Spills: Remove ignition sources, keep it out of drains and waterways with sand or earth, then absorb it or pump it into labelled, sealable containers.
- Dangerous goods: UN 1993, FLAMMABLE LIQUID, N.O.S. (toluene, acetone), Class 3, Packing Group II, Hazchem •3YE.
- Poisons schedule: Schedule 6. Store locked up.
- SDS: Safety Data Sheet dated 6 Sep 2024 attached to this page.
Dangerous goods · Class 3 · UN1993 · Packing group II
GP Thinners
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Delivery Information
Estimated dispatch: 4 business days after you order.
Freight is quoted to your postcode at checkout before you pay, with an estimated delivery date where the carrier gives one.
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