- A 650°C matt black in a tin, for a brush, roller or gun. Sold for stoves and barbecues; useful on a car for the hot parts an enamel cannot take.
- Coverage stated, 15 m² per litre, which nothing else in the 650°C class publishes.
- No primer for most work. Two thin coats, and no more.
- The page contradicts itself on drying times and gives no cure schedule. Heat the part gradually.
- Not for anything above 650°C, in Jenolite's own words.
What it is
Jenolite's heat resistant paint is the tin in a range built for stoves, barbecues, chimneys and fire surrounds, and the page names metal as its intended surface with brick and plaster as afterthoughts. On a car it belongs on the parts between the enamel class and the header class: heat shields, brackets by the manifold, the silencer and tailpipe end of a system, a bracket on a turbo. It is reviewed here because it is one of two tins on Amazon UK rated to 650°C, the other being POR-15 High Temp, and the only one of the two with a coverage figure.
The 500 ml tin is the one listing. The matching aerosol in aluminium is reviewed separately as Jenolite VHT Aluminium.
The figures, and what they mean
650°C, with Jenolite's own ceiling attached: not recommended for surfaces above it, and for those it points to a specialised exhaust paint without naming one. The paint type page explains why the qualifier matters; here there is none, and the honest reading is the class, not the hottest spot on a header.
The coverage figure is the rare one: 15 m² per litre, so a 500 ml tin does seven and a half square metres at a single coat, which is every shield and bracket on a car and most of a system. Nothing else at 650°C says how far it goes.
The drying figures disagree with each other. One part of the page says touch dry in 30 minutes, handleable in one to two hours, fully cured in 24; another says touch dry in at least ten minutes and full hardness in an hour. The recoat interval is 10 to 15 minutes in one place and 20 in another. Take the longer figures.
Putting it on
Remove oil, grease and dirt; take old paint and loose rust off with steel wool or a wire brush; sand rough areas lightly; make sure the surface is dry and cool. Stir well. No primer for most work, Jenolite says, with a note that a high-heat primer may improve adhesion on bare metal and no product named.
Thin, even coats by brush, roller or spray gun, and a maximum of two. That is a limit as well as an instruction: this is not a paint to build a film with, and a third coat is outside the maker's method. The spray gun guide covers putting a tin through a gun; Jenolite gives no thinner or ratio.
The cure
Let it fully cure before exposing it to high temperatures, and for best results heat the painted surface gradually. That is the whole of the instruction: no temperatures, no times. Treat it as the class is treated in painting manifolds and exhausts: dry overnight, fit, build the heat up in stages, and expect a little smoke the first time it gets properly hot.
Where it sits against the others
Against POR-15 High Temp, the other 650°C tin: POR-15 is a dedicated manifold coating with a written cure order and a primer rule; Jenolite is a stove paint with a coverage figure. For a manifold, POR-15. For the shields and brackets around it, this. Against the engine enamels, including Eastwood's 343°C ceramic: none of them is rated for the parts this is, and this is not rated for a block's finish or its fuel and oil resistance. Against the two header aerosols: 350°C of headroom the other way.
Best brush-on engine enamels 2026 ranks it fourth, as the one tin there for the hot parts.
Who it suits
A heat shield, a bracket beside the manifold, a silencer or a tailpipe, by brush, with the rest of the tin going on the barbecue. Anyone who wants a coverage figure before buying.
Not a block or a cover, which want an enamel. Not a manifold or a header, where POR-15 or the aerosols above 1,000°C belong. And not anyone who wants a colour: it is matt black.