ANCILLARY · THE SUPPORT
QUICK DRIER
GP5109
Germa-Tech Quick Drier is specially formulated for 2K solid colours and clear coats. Can speed up the dust free time and air-drying times of paint film. Suitable for spot repair or…
SCAN FOR THE FULL RANGE,
APPLICATION GUIDES & VIDEOS
germatech.com.au
TDS v2.3 · ISSUE 02.09.2026
SUPERSEDES 07.2022
REVIEW DUE 07.2028
5-15g Quick Drier per 1L ready to spray paint, by ambient temperature — see…
see the detail below
Pot Life of paint mixed with Quick Drier would be shortened considerably,…
see the detail below
paint mixed with Quick Drier
01SUITABLE SUBSTRATES
- 2K Solid Colours
- Clear Coats
02MIXING
| TEMPERATURE | ADD |
|---|
| 10-15 ˚C | 5-6g Quick Drier into 1L ready to spray paint |
| 0-10 ˚C | 6-10g Quick Drier into 1L ready to spray paint |
| Below 0 ˚C | 10-15g Quick Drier into 1L ready to spray paint |
| Ratio by weight | 5-15g Quick Drier per 1L ready to spray paint, by ambient temperature — see the table above |
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| Pot life | Pot Life of paint mixed with Quick Drier would be shortened considerably, use up as soon as possible. (paint mixed with Quick Drier) |
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03DRYING & CURING
No drying schedule is printed on the source sheet.
04RECOAT & REWORK
IF YOU MISS THE RECOAT WINDOWOnce the film has cured past its recoat window, do not put another coat straight over it — the new coat sits on the surface and lets go at the interface. Abrade the whole area first (P800 wet or a grey abrasive pad), degrease, tack off, then recoat.
05PHYSICAL PROPERTIES
| Density | approx. 0.87 (relative density, water = 1) — estimated from the Safety Data Sheet; not separately measured |
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| Equipment cleaning | Clean guns and equipment immediately after use with gun wash or a solvent cleaner. Never let mixed 2K product start to cure in the gun — once it kicks, no solvent will save it. |
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06STORAGE, SHELF LIFE & PACKS
| Storage life (unopened) | Up to 36 months unopened — SUBJECT TO correct storage: a cool, dry place below 20 °C, out of direct sun. Heat is the biggest killer of paint in the tin: stock stored or transported in hot vehicles, tin sheds, shipping containers or direct sunlight loses life fast whatever the date on the tin, and that is where most premature failures start. Storage life is an optimal guide, not a promise that survives a hot shed. |
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| Once the seal is broken | Once the seal is broken the clock starts, and how you store it sets the pace. This product: 90 days once the seal is broken, resealed tight — then discard. |
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| Storage | Store indoors in a cool, dry place below 20 °C, out of direct sunlight, with the lid sealed tight after every use. Never store or transport in heat — not in a tin shed, a shipping container, a hot van or a sunlit rack. |
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07PRODUCT CODES
| CODE | WHAT IT IS | PACK SIZE |
|---|
| GP5109 | Product | 1LT |
08WHERE IT SITS IN THE SYSTEM
BARESUBSTRATE
›
EPOXYPRIMER
›
FILLER
›
2K PRIMERSURFACER
›
SEALERWET-ON-WET
›
COLOUR
›
CLEAR
This is an ancillary — it supports the steps above rather than forming a layer of its own.
09STANDARD NOTES — THE SAME ON EVERY SHEET IN THIS SET
- Germa-Tech products are designed to work as a system — fillers, primers, basecoat, clears, hardeners, reducers, abrasives and ancillaries — each graded and tested for compatibility with the products and processes on this sheet. Performance is only assured within the system, and a fault is only assessable within it: once non-Germa-Tech product has been used in the process, what touched the panel can no longer be verified. SN10 · ALL PRODUCTS
Standard inclusions are controlled: each note applies to every product in its named set, enforced at build. They cannot drift onto some sheets and off others.
10PRODUCT-SPECIFIC NOTES
- 1. Recommended addition of Quick Drier is not more than 15g for 1L ready to spray.
- 2. Quick Drier can not be used as hardener
WARNINGS CARRIED FORWARD FROM THE PREVIOUS SHEETQuick Drier can not be used as hardener
Recommended addition of Quick Drier is not more than 15g for 1L ready to spray.
Pot Life of paint mixed with Quick Drier would be shortened considerably, use up as soon as possible.
AMBIENT TEMPERATURE — WHY EVERY TIME ON THIS SHEET MOVESEvery time on this sheet — flash-off, drying, pot life, the recoat window — is quoted at 20-23 °C, and every one of them moves with temperature, because the two things that set them, solvent evaporation and chemical cure, are both driven by heat. As a working rule cure rate roughly doubles for every 10 °C rise: at 30 °C the times run at about half; at 15 °C they stretch to nearly half speed. Judge by panel temperature, not air temperature — a panel in sun or fresh out of the booth is far hotter than the shed.
HOT WEATHER (above 30 °C): everything shortens. Flash-off comes down, pot life comes down, and the recoat window closes early. Move to the SLOW hardener and slow or extra-slow reducer so the film has time to flow and release solvent — spraying standard speeds in heat is the fast road to dry spray and solvent boil.
COLD WEATHER (below 20 °C): everything stretches. Flash-off gets LONGER — the most common winter mistake is coating over a film that looks flashed but has not released its solvent, which traps it under the next coat and comes back as fry-up, dieback or runs. Move to the FAST hardener, and extend every flash. Below 15 °C standard 2K cure effectively stalls — bake the job, or wait for heat. Cold does not extend the recoat window in proportion either: contamination, moisture and flash rust run on the clock regardless of temperature.
11GOOD TO KNOW — WHAT WE GET CALLED ABOUT
- Cap it at 15 g per litre of ready-to-spray. More does not dry it faster.
- Quick Drier is not a hardener. It never replaces the hardener in the mix.
- Pot life drops sharply once it is in - mix only what you can spray straight away.
- It is for spot repairs and cold-weather work, not a shortcut on a whole vehicle.
12TROUBLESHOOTING
| DEFECT | WHAT YOU SEE | WHY IT HAPPENED | FIX |
|---|
Solvent pop | small open craters or burst blisters through the film, usually only obvious after the bake or once the panel has cooled | solvent trapped under a skinned-over film - flash time cut short, coats laid on too heavy, too many coats, or the panel put into the bake before the final flash was done | let the film cure right out, then sand the popped area back to a sound film and refinish; if it has gone through to the undercoat, sand back to the undercoat, re-prime and refinish |
Soft film and slow cure | the film stays soft, marks under a fingernail or a mask edge, clogs the paper when sanded and will not polish up | wrong or short-measured hardener, mixing beyond pot life, spraying too cold, bake cut short or started before the flash was finished, or a drying additive used where a hardener is needed | give it a full bake cycle and re-check; if it is still soft the film has to come off back to a sound layer and be redone with the correct mix |
Die-back and gloss loss | the finish looks right coming out of the booth and then dulls off over the next hours or days | polished or handled before the film had cured, film built too heavy, flash between coats too short, wrong reducer or hardener for conditions, or poor booth air movement | let it cure, then compound and polish; if the gloss will not come up, sand and respray |
Dry spray | a rough, dusty, low-gloss patch - usually on the far side of a long panel or around the edge of a blend | the atomised paint dries before it lands - gun too far off, air pressure too high, reducer too fast, or the shop running hot; on big panels the mist dries in flight | on 2K solids and clear, lay Thinner SRA over the overspray area straight after the coat to melt it in; once cured, sand the dry area back and refinish |
Blushing | a milky, hazy or white cast through the film, worst in hot or humid weather and on fast-drying work | solvent flashing off so fast it chills the film and pulls moisture out of the air into it - hot shop, high humidity, or a reducer or hardener that is too fast for the day | while wet, a coat with retarder in it will often pull it back; once cured, sand the affected film back and refinish with the correct reducer speed |
AUSTRALIAN CONDITIONSSolvent products flash faster as the temperature climbs. Above 30 °C expect a degreaser or blending solvent to evaporate before it has done its job — work smaller areas and wipe off before it dries. Keep containers closed and out of direct sun.
13HEALTH & SAFETY
TAKES ON THE HAZARD OF THE SYSTEM IT GOES INTOOn its own this is a solvent product. Once added to a two-pack system, the precautions for that system apply in full — including
air-supplied respiratory protection where the system is isocyanate cured. Work to the TDS and SDS of the product you are adding it to as well as this one.
Read the Safety Data Sheet before use. REVISION HISTORY
| VERSION | DATE | CHANGE |
|---|
| v2.3 | 02.09.2026 | Reissued on the current Germa-Tech technical data sheet format. New in this issue: a quick-reference card, the hardener and reducer selection gauge, the coating thickness stack, the recoat-window recovery procedure, and a product-specific troubleshooting table. Bake schedules are now stated as metal temperature. |
14WARRANTY & FURTHER INFORMATION
TALK TO US — WE MEAN ITWe are always happy to talk to customers who contact us directly. If anything on this sheet does not fit the job in front of you — an unusual substrate, a tight timeline, a cold morning, a window you have missed — call before you spray, not after.
support@amproaustralia.com · germatech.com.au This sheet is read together with the GERMA-TECH APPLICATION STANDARD (terms, conditions of application and warranty) and the Coating Thickness Guide — both hosted with the data sheets and at germatech.com.au. Warranty is conditional on correct use of the product as described on this sheet, including the sanding steps and grits in its sanding guide, within the Germa-Tech system. The information in this data sheet is given in good faith and is based on laboratory and field testing. Ampro Australia has no control over the conditions under which this product is used, so the end user must satisfy themselves that the product is suitable for the intended application and conditions. All times are quoted at 20 °C and 50% relative humidity unless stated otherwise. This sheet supersedes all previous issues.
