- A 650°C aluminium aerosol for exhausts, engine parts, stoves and radiators, from the British rust-treatment maker.
- The cure completes in service at 260°C. No oven, no staged bake.
- Two figures on the page, and that is the sheet: 650°C and 260°C.
- Below the 1,000°C class for a manifold or header. Right for a downpipe, a shield or a bracket.
- Matt aluminium is the only finish.
What it is
Jenolite is the British rust-treatment brand, best known for its converter, and its heat-resistant range covers stoves, barbecues and the hot parts of a car. The VHT Aluminium aerosol is the exhaust-and-engine-parts can in that range: iron, steel and aluminium are the surfaces it names, and automotive engine parts, barbecues, chimineas and radiators the uses. "VHT" here is the trade's loose shorthand for a very high temperature paint, not the American brand of that name; the VHT brand page explains the confusion.
The 400 ml can is reviewed here; a pack of three is also listed.
The figures, and what they mean
650°C, with no qualifier. VHT and U-POL call their figures intermittent and the paint type page explains why that word matters; Jenolite gives one number and leaves it there. Read it as the class the can belongs to: enough for a downpipe, a heat shield, a bracket near the manifold, and the silencer end of a system; 350°C or more short of the two header coatings for the manifold itself.
The second figure is the useful one. Jenolite says full cure is achieved once the paint reaches 260°C, which means there is no oven stage and no staged bake: the first proper drive finishes the job on any part that gets that hot. A part that never reaches 260°C in use will never cure, which is the same rule every maker in this class states one way or another.
What is absent: drying times (the page says quick drying and no more), an interval between coats, coverage, and any primer instruction.
Putting it on
Cool, clean metal, free of grease and oil, with loose rust or old paint taken off with a wire brush or steel wool. Preparing an engine for paint has the general method, and on a rusty casting blasting is what gets into the texture.
No primer is mentioned either way. Spray from 15 to 30 cm in smooth, even strokes, a thin coat, and repeat one or two times for full coverage. Jenolite gives no interval, so treat the coats as the other makers do: thin, and the next when the last has flashed off. Painting manifolds and exhausts sets out the sequence the better-documented cans ask for.
The cure
Let it dry, fit the part, and build the heat up gradually on the first run rather than driving straight off: the cure completes at 260°C, and sudden heat on a soft film is what every maker warns against. Expect a little smoke and a smell the first time it gets hot, which is the resin finishing.
Where it sits against the others
Against VHT FlameProof and U-POL Raptor Flameproof: both rated above 1,000°C, both with primers and written cures; Jenolite is the 650°C can with no oven and no primer to buy. Against Jenolite's own heat resistant paint, the matt black in a tin: the same 650°C by brush. Against the stove paints at 650 to 800°C that fill the rest of the shelf: much the same figure, with a maker whose page at least says how the cure happens.
Best exhaust and manifold paints 2026 ranks it fourth, as the best aluminium finish.
Who it suits
A downpipe, a heat shield or a bracket that should look like bare metal and will get properly hot in use. Anyone who wants the job done with one can and no oven.
Not a manifold or a header on an engine that is worked, where the figure runs out. Not a part that never reaches 260°C, which will stay soft. And not anyone who needs a black: that is the tin.