: What kind of rollers should I use to apply epoxy? It seem like most
: people (of those who use rollers at all) use foam rollers. But
: how should the foam look like? Thick or thin?
: At a marine shop I have also seen some aluminium rollers with
: grooves (Picture). Has anyone ever tried to use such rollers?
: Horizontal or vertical grooves?

: If I choose to use foam rollers, how many should I buy? How long
: can I expect to use one roller? Just for one batch or a full
: side of hull/deck. Can I clean the rollers?

: Palle Dam
: Denmark

I tend to use a brush for much fiberglass work, but I do use rollers too. The candy stripe roller covers sold by Wooster are excellent and won't shed but they are pricy, they also like most rollers are too wide for canoes/kayaks, so need to be cut down. I normally buy 9" rollers and cut into 3 - 3" rollers, cut with a utility knife. Those sold by West brand epoxy work great and are somewhat cheaper. All composite rollers need phenolic cores not plain cardboard or the epoxy will cause them to fall apart and shed roller material.

The "roller" in your picture I think #4, on the left, I use on occasion to get glass to hold on hard edges, until the binder disolves the glass tends to bridge hard corners and these toothed rollers help to force it in place.

Btw, freezing rollers works great, but putting them in the freezer you store food in isn't a great idea, you really don't want to mix epoxy and food.

Bill H.