These three lines are not grades of quality. They answer three different questions, and a facility usually needs more than one of them. Food-grade vs antibacterial is the pair buyers confuse most often, so this page sets all three lines side by side.
What each line actually answers
Standard FRP gelcoat panels answer a durability question. Will the wall stand up to years of washdown, weather and handling without being replaced?
Food-grade FRP gelcoat panels answer a compliance question. Where a surface has to meet food-contact requirements, the buyer has to be able to show that the material is permitted for that use.
Antibacterial gelcoat panels answer a hygiene question. On environmental surfaces such as kitchen walls and ceilings, the specification is about limiting bacterial growth on the surface itself.
A panel that satisfies one of these does not automatically satisfy the others. That is the part most datasheets leave out.
Side by side
On the food-grade documentation. SKD’s food-grade panels are tested per FDA 21 CFR 177.1900 (total extractives). The regulatory basis for resinous and polymeric coatings is 21 CFR 175.300. A compliant product is described as “food-contact compliant per FDA 21 CFR”, not “FDA approved” — FDA does not approve materials. For a walkthrough of the regulation, the test method and the wording a supplier may and may not use, see Food-Grade FRP Gelcoat Panels: What FDA Compliance Really Means for Food Plants.
Whether a given panel is the right choice depends on the intended use, so ask for the report that covers the exact product being quoted. One further question is worth raising with any supplier: does the documentation cover the gelcoat surface layer, the full panel, or the finished assembly? For SKD’s food-grade panels, the test covers the gelcoat surface layer.
Two notes on reading the table. All three lines are single-skin gelcoat panels: a gelcoat layer over a fiberglass-reinforced resin layer. The 0.8–5.0 mm figure is the thickness of that finished sheet, not the thickness of the gelcoat coating alone. The temperature range applies to the gelcoat face; where a project uses a bonded sandwich construction, the core sits behind that face and brings its own limits.
Food-grade vs antibacterial: two different risks
Food-grade is about migration. The question is whether anything moves out of the panel and into the product on it. That is a safety question, and it is answered by extractives testing against the applicable food-contact regulation.
Antibacterial is about growth. The question is whether organisms that land on the surface can survive and multiply there. That is a hygiene question, and it is answered by a laboratory test of the surface function.
So a panel can be food-grade without being antibacterial, antibacterial without being food-grade, both, or neither. Two claims, two reports. That is why food-grade vs antibacterial is a specification decision, not a matter of preference. When a supplier offers “hygienic panels” as a single phrase, ask which of the two reports the phrase refers to.
Can one facility use two of these lines?
Yes. Food-grade vs antibacterial is decided surface by surface, because the two lines are separate dedicated SKUs rather than one panel carrying both properties.
Food-contact requirements attach to the surfaces whose material has to be documented as suitable for food contact. In practice that means the walls and ceilings of food handling and processing zones such as a dairy cold room or a filling area, and not every wall in a building. Surfaces outside that scope, such as a general cold store, are generally specified for cleanability, moisture resistance and routine sanitation, and whether they additionally need food-contact compliance depends on the application and the regulations that apply to it.
A food truck makes the distinction easy to see, because both scopes occur in the same vehicle. The food handling area inside a food truck may call for documented food-contact compliance on its walls and ceilings, while the rest of the interior is usually specified for cleanability and sanitation. The final specification depends on the intended use of each surface.
Where the two requirements land on the same surface, tell us and we will work through the layout with you.
Which line should you choose?
These functions address different requirements. Confirm the product line, the intended use of each surface, and the supporting documentation before you finalise a specification.
Send us the room, not just the request
Tell us what the space is used for, which surfaces need food-contact compliance, and your wall or ceiling dimensions. We can identify the appropriate product line and confirm the available specifications and supporting documentation for that product.
Need help specifying the right gelcoat panel? Contact SKD for a project-specific specification.
