Koch-Chemie × THE FINISHER THE FINISHER "BodyGuard" Spray Sealant 1000ml

THE FINISHER × Koch-Chemie „BodyGuard“ — Spray Sealant (Marine) for Gelcoat Smoothness & Strong Beading

What do I use BodyGuard for on board? — The marine spray sealant applies a hydrophobic, even protective film to gelcoat and glossy painted surfaces in minutes, visibly reduces salt adhesion, increases smoothness, and shortens the next cleaning – as a drying aid or on a dry surface.

THE FINISHER BodyGuard Spray Sealant is your quick protection and smoothing step after washing. On smooth gelcoat and high-gloss, marine-painted panels, it builds a thin, homogeneous protective film: water runs off cleanly, salt and spray adhere less, and the surface feels "dry-smooth." Ideal as a drying aid directly after CleanMarine or as a quick finish on a dry surface. Not for non-skid, teak, vinyl, or plastic windows – deck/material specialists remain in use there.

• Hydrophobicity in minutes: strong beading/sheeting, noticeably smoother finish – tangibly less salt/dirt adhesion.
• Simple & streak-free: thin-film, even flash-off; can be applied as a drying aid or dry finish.
• System-fit Marine: compatible after CleanMarine and over PerfectOne/WaxPolish – protection can be refreshed without "layering."

Spray Sealant for Boats – Hydrophobicity, Smoothness & Salt Resistance

Spray sealant on gelcoat needs two things: thin, homogeneously adhering polymers and controlled flash-off. BodyGuard forms exactly such a film: It smooths the micro-structure, promotes clean beading, and reduces the surface adhesion of salt, spray, and harbor film. The result is not "oily," but dry and calm – ideal if you want a clear, easy-to-rinse surface quickly after your trip. Because the layer is fine, the reflection remains crisp; at the same time, dirt washes off faster during rinsing, which eases maintenance intervals.

Application On Board – Drying Aid or Dry Finish

Application always in the shade on a cool surface. After washing with CleanMarine, rinse generously with fresh water. Drying Aid: 1–2 sprays per section onto the wet panel or into the drying towel, wipe off water, and wipe streak-free with a fresh microfiber side. Dry Finish: use two towels (one for spreading, one for buffing) and work panel by panel without pressure. Immediately remove excess, never let the product dry. Forbidden: non-skid decks, teak, vinyl upholstery, polycarbonate/acrylic windows – this will create slippery/smeary patterns. Briefly wipe dry fittings/edges after contact.

Maintenance Plan & Compatibility – Combine with WaxPolish/PerfectOne

Maintenance Plan: After the main wash with CleanMarine, BodyGuard sets the everyday protective tone for the hull and smooth deck areas. You can use BodyGuard as a standalone protector or apply it over an optical finish: PerfectOne (one-step on gelcoat) → BodyGuard for hydrophobicity; or WaxPolish for classic deep gloss → BodyGuard later as a quick hydrophobicity booster. Depending on sun/salt/mooring time, refresh every few weeks in minutes. If beading diminishes: wash, reapply thinly – no thick layers, no "clogging."

Frequently Asked Questions about THE FINISHER × Koch-Chemie „BodyGuard“ — Spray Sealant (Marine)

On which surfaces can it be used?

On smooth gelcoat, high-gloss marine painted surfaces, and smooth plastics. Not on non-skid, teak, vinyl, or plastic windows.

Drying Aid or dry – which is better?

Both work. As a drying aid, you reduce friction during drying; dry application achieves the maximum "calm" finish. Decide based on time and desired appearance.

Is BodyGuard compatible with WaxPolish?

Yes. You can apply BodyGuard over WaxPolish at a later time to increase hydrophobicity without covering up the wax look.

How often should it be refreshed?

Depending on use, every few weeks. After salty stretches or intensive mooring, simply reapply thinly after washing.

Should windows & vinyl also be sealed?

No. Clean windows separately with SeaYou, clean vinyl with VinylTexClean, and care for it with VinylGuard. This ensures the feel/look remains material-specific and correct.

Last updated: 01.11.2025 — Author: Daniel (Detailing1)