Lakk means lacquer, enamel
benzin means gas, benzene

I'm not sure if the composed word has a special meaning, different from the one of its component words

solvent naphtha - if it is used as a solvent/thinner for paints (everday use of the word)
petroleum spirit - if the word is in a chemical/science context

it is a Hungarian word

The correct translation is "white spirit" is it was suggested before. I just wanted to offer a few references to support that.
In addition, if the target audience is American, you may want to use Stoddard solvent, as this is the american version of it. (See more explanation on that later.)
The first link I posted below is a very detailed paper on white spirit, I copied the summary paragraph here:

1. SUMMARY

1.1 Properties of white spirit

White spirit is a clear colourless solvent with very low water
solubility and a characteristic odour (odour threshold: 0.5-5 mg/m3).
The most common variety of white spirit is a mixture of saturated
aliphatic and alicyclic C7-C12 hydrocarbons with a content of 15-20%
(by weight) of aromatic C7-C12 hydrocarbons and a boiling range of
130-230°C. The C9-C11 hydrocarbons (aliphatics, alicyclics and
aromatics) are most abundant, constituting > 80% (by weight) of the
total. This ordinary white spirit is designated white spirit, type
1, regular grade, as three different types and three different
grades exist. The type refers to whether the solvent has been
subjected to hydrodesulfurization (removal of sulfur) alone (type 1),
solvent extraction (type 2) or hydrogenation (type 3). The
hydrodesulfurized type contains less than 25% aromatic hydrocarbons,
the solvent-extracted less than 5%, and the hydrogenated less than 1%.
Each type comprises three different grades: low flash grade (flash
point: 21-30°C; initial boiling point: 130-144°C), regular grade
(flash point: 31-54°C; initial boiling point: 145-174°C), and high
flash grade (flash point: > 55°C; initial boiling point:
175-200°C). The grade is determined by the crude oil used as the
starting material and the conditions of distillation. Type 0 white
spirit is defined as a distillation fraction with no further
treatment, consisting predominantly of saturated C9-C12 hydrocarbons
with a boiling range of 140-220°C. The low flash grade possesses the
highest vapour pressure of approximately 1.4 kPa (10.5 mmHg) at 20°C.

A USA variety of type 1 is called Stoddard solvent and is a
petroleum distillate defined according to its boiling range of
149-204°C and the absence of rancid or objectionable odours.

The second link is a Hungarian link talking about the various types of petrol products, detailing the boiling points, etc. for each. The ranges described in the English document for white spirit matches the range for lakkbenzin in the Hungarian document.