CombiPrimer 3369 and 3380
Anticorrosive metal primer · GB · manufacturer-sourced
How long before you can recoat Rust-Oleum CombiPrimer 3369 and 3380?
Short answer
Rust-treatment sequence
Convert or prime first, topcoat on the stated schedule
- Remove loose rust and apply the Anticorrosive metal primer
- Wait for the stated time before topcoating
- Let the system cure before exposure to weather
This product’s stated stages Quoted at 68°F
- Safe to touch1 hour
- Safe to handle2 hours
- Ready for another coat2 hours
- Full cure7 days
Worth noticing: Touch-dry comes at 1 hour, but full cure is 7 days, about 168 times longer.
Common mistake: Topcoating a rust converter that is still wet or reacting.
Coat timeline
Plan the next coat and final use separately
- 1ApplyUse the Anticorrosive metal primer directions and prepare for steel, gates, and machinery.
- 2Next coatUse the listed recoat milestone; do not substitute touch-dry time.
- 3Normal useWait for the applicable handling, water or cure milestone.
Time the topcoat
Your countdown
Stated times
- Safe to touch1 hour
- Safe to handle2 hours
- Ready for another coat2 hours
- Full cure7 days
From Rust-Oleum data sheet · checked 2026-10-25. Anything not listed isn’t stated by the manufacturer.
Manufacturer website: rustoleum.com
Conditions & fine print
- Stated conditions: 68°F (20°C)
- Dry and recoat times change with temperature, humidity and film build. Follow the current data sheet and label.
- Region GB. Formulas can differ between countries; check your container.
- Safe to touch: It is 2 hours at 10°C and 30 minutes at 30°C.
- Safe to handle: It is 4 hours at 10°C and 1 hour at 30°C.
- Ready for another coat: It is 4 hours at 10°C and 1 hour at 30°C.
- Full cure: It is 14 days at 10°C and 5 days at 30°C.
- Entered from the cited manufacturer documentation. Check the current label for the exact formula and region. Report outdated information
- Actual results depend on preparation, thickness, ventilation, temperature, humidity, mixing and substrate.
Confirm this is your product
Closely named formulas, colors and regional versions can use different times. Match these details to your container before starting a countdown.
- Exact listing
- Rust-Oleum CombiPrimer 3369 and 3380
- Variant
- Anticorrosive metal primer
- Region
- GB
- Listed use
- steel, gates, machinery
- Timed stages recorded
- touch, handle, recoat min, full cure
- Source checked
- 2026-10-25
Documentation: Technical data sheet · Technical data sheet, issued 10/06/2020
Condition attached to the stated time: It is 2 hours at 10°C and 30 minutes at 30°C.
About this product
A metal primer whose sheet gives three temperatures, so the recoat runs from 4 hours at 10°C down to 1 hour at 30°C.
Using this specific product
Rust-Oleum CombiPrimer 3369 and 3380 is listed here as the Anticorrosive metal primer version for steel, gates, and machinery. For treating rusted metal, the useful question is not simply whether the surface looks finished—it is whether the exact next-action milestone shown above has been reached.
Before you start
- Confirm the package says Anticorrosive metal primer; related versions can use different timing.
- For steel, gates, and machinery, pay particular attention to loose rust removal, film thickness, temperature and humidity.
- It is 2 hours at 10°C and 30 minutes at 30°C. It is 4 hours at 10°C and 1 hour at 30°C. It is 14 days at 10°C and 5 days at 30°C.
How to check readiness
Confirm the surface is dry and the converter has changed color before topcoating. Touch only a hidden edge first; a dry surface can conceal a soft layer underneath. Lift or move the item gently and avoid twisting the bond or pressing finished faces together. Before recoating, confirm the first coat matches the manufacturer’s stated condition; if the maximum window passed, check whether sanding is required.
Avoid this mistake
Topcoat timing depends on the topcoat type; check the stated recoat window.
Compare with similar products
- Compare with CCM RustCon Rust ConverterRecoat: 2 h there, 2 h here.
- Compare with POR-15 Rust Preventive CoatingRecoat: 2–6 h there, 2 h here.
Questions
How long before you can recoat this product?
Rust-Oleum states: The sheet gives touch dry in 1 hour at 20°C. Conditions: It is 2 hours at 10°C and 30 minutes at 30°C.. The sheet gives handling in 2 hours at 20°C. Conditions: It is 4 hours at 10°C and 1 hour at 30°C.. The sheet gives a recoat in 2 hours at 20°C. Conditions: It is 4 hours at 10°C and 1 hour at 30°C.. The sheet gives full cure in 7 days at 20°C. Conditions: It is 14 days at 10°C and 5 days at 30°C.. These are the manufacturer’s stated times, not a guarantee.
How long before I can overcoat CombiPrimer at 10°C?
The sheet gives 4 hours at 10°C, against 2 at 20°C.
How long does this product take to fully cure?
Rust-Oleum states: The sheet gives full cure in 7 days at 20°C. Conditions: It is 14 days at 10°C and 5 days at 30°C.. These are the manufacturer’s stated times, not a guarantee.
How long until this product is safe to touch?
Rust-Oleum states: The sheet gives touch dry in 1 hour at 20°C. Conditions: It is 2 hours at 10°C and 30 minutes at 30°C.. These are the manufacturer’s stated times, not a guarantee.
How long until this product is safe to handle?
Rust-Oleum states: The sheet gives handling in 2 hours at 20°C. Conditions: It is 4 hours at 10°C and 1 hour at 30°C.. These are the manufacturer’s stated times, not a guarantee.
What affects how long this product takes to dry or cure?
Dry and recoat times change with temperature, humidity and film build. Follow the current data sheet and label. Follow the product label for your conditions.
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