Question 1

Can this be used on a radiator?

Accepted Answer

I have looked on the tin and done a bit of research as well. The tin says: good for bare or rusty iron and steel. For use on aluminium, galvanised and non-ferrous metals, use other products. This is where it gets tricky, old, pre 1970s radiators used cast iron and steel. After the 1970s, a lot of modern radiators use copper pipes with aluminium fins. So, just check your radiators. I just did a test of my modern ones (2007) and the fins look like they are inside and using a magnet on the outside (which stuck) I reckon that is steel. I would therefore assume I can use the Hammerite here. So, just do a magnet check and if you are happy you can try that. Have a look on the Hammerite website also. I did, my initial findings were that they were just selling the gloss top coat. You can research this more yourself if you like. Just remember though as I have stated above, the tin says this is good for iron & steel  bare or rusty metal but NOT for aluminium, galvanised or non-ferrous metals (use another product for these). Hope this helps you.

Question 2

Will this be ok under a coat of enamel paint on an engine.

Accepted Answer

Probably. I don't know how it behaves at high temperatures but the outside of your engine shouldn't get too much over 100C.

Question 3

I want to paint a metal window white . Can I use this first then  cover with  undercoat and final coat in white without it showing through .

Accepted Answer

Yes you can.   I rubbed down the metal first, no dust, nothing but metal, then used the primer.   The next day, first coat of white, which did not cover the red oxide perfectly;  but a second coat 6 hours later gave a marvellous finish.   I've just bought some more, to do up our old iron garden bench.

Question 4

can I use this on my garage door and then paint a gloss paint over it please

Accepted Answer

I wouldn't use this if the door is smooth/new bare metal.

ASIN	B001GU8C2G
Age Range Description	18+ Years
Best Sellers Rank	30,189 in DIY & Tools ( See Top 100 in DIY & Tools ) 74 in Primer
Brand Name	Hammerite
Colour	Red
Colour Code	#FF0000
Container Type	Tin
Country of Origin	United Kingdom
Coverage	10-15 m²/500 ml
Customer Reviews	4.6 4.6 out of 5 stars (813)
Dry Time In Hours	6
Finish Type	Matte
Full Cure Time	6 Hours
Included Components	primer
Indoor Outdoor Usage	Indoor
Is Waterproof	True
Item Form	Liquid
Item Volume	0.5 Litres
Item Weight	0.7 Kilograms
Manufacturer	Hammerite
Model Name	amorce d'oxyde Rouge
Model Number	5092844
Paint Type	Spray
Part Number	5092844
Size	500 ml (Pack of 1)
Special Features	Fast-Drying
Specific Uses For Product	Car
Surface Recommendation	Metal
Unit Count	500.0 millilitre
Water Resistance Level	Water Resistant

Hammerite Primer - Red Oxide. Metal Primer for Garden Furniture, Radiator and Fence Paint. Rust Inhibitor and Rust Treatment for Metal, Interior and Exterior Use - 500ml

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