Asked by: Boyce Castarnado
sports surfing and bodyboarding

Does Bondo fiberglass resin dry clear?

Last Updated: 19th May, 2020

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Normal fiberglass resin does solidify yellow, but you can also buy clear fiberglass resin (it costs 30-40% from where I go). In liquid state it is blue, but dries up clear. Polyester resins also would achieve the same effect. They solidify clear, you can cast inserts and can be coloured to your desire.

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Also to know is, can fiberglass resin be used alone?

Bondo Fiberglass Resin is the same high-strength polyester resin that is used to build most boats. It can be used alone or with fiberglass tape, cloth or mat to repair damaged fiberglass boats, snowmobiles, jet skis, bathtubs and showers and also be used as a sealer on damaged and rotted wood.

Also Know, can Bondo be used on fiberglass? Fiberglass Bondo is waterproof, extremely strong and can be used for virtually any fiberglass panel. As an initial matter, it must be recognized that there is Bondo for metal and Bondo for fiberglass. Ensure that the Bondo for fiberglass is used.

Regarding this, how long does Bondo fiberglass resin take to dry?

two hours

Is Bondo fiberglass resin waterproof?

This high-strength polyester resin creates waterproof repairs on metal, fiberglass and wood as well as seals concrete and rotted wood. Bondo Fiberglass Resin is waterproof and is compatible with all paints, including gel coat and marine paints.

Related Question Answers

Constança Djugashvili

Professional

What is the difference between fiberglass resin and epoxy?

Polyester resin generally costs slightly less than epoxy resin. Once cured, polyester resin is water permeable, meaning water can pass through it eventually. The bonding strength of polyester resin is generally less than 500 psi. Polyester resin will not bond to epoxy resin.

Izaskum Funez

Professional

What do you mix fiberglass resin with?

Set the fiberglass in a spot that is easily within reach. Add liquid hardener and resin in a small bowl in proportions as recommended by the manufacturer. Mix the two well using a plastic spoon or knife. Add the resin and hardener to the fiberglass cloth strips using the plastic spoon or knife used to stir the mixture.

Beata Henzchen

Professional

Which is better epoxy or polyester resin?

Polyester is an adequate adhesive but not as good as epoxy. As a general rule, the tensile strength of a polyester bond will be around 20 percent weaker than the same bond made with epoxy. That makes epoxy resin usually the best choice for fiberglass repair work. Use polyester for repairs that will be gelcoated.

Jesusa Kronke

Explainer

Will Bondo stick to fiberglass resin?

If the bondo has cured for more than 24 hours polyester resin will not chemically bond to it. However, if as has been said, you rough up the cured bondo with sand paper, you can achieve a mechanical bond with polyester or with epoxy resin.

Ugaitz Baldoma

Explainer

What is the strongest fiberglass cloth?

It is a plain weave and is stronger and sturdier than the 6oz. It is often used for waterproofing boat decks. Style #7500 is the most popular general purpose fabric and also a great boat making cloth. It is widely used in the fiberglass industry.

Miron Zapff

Explainer

How much weight can fiberglass hold?

You should be able to bring this in around 90-95 pounds.

Pascu Kaczor

Pundit

Does Bondo fiberglass resin contain wax?

Bondo resin is a polyester laminating resin that will most definitely dissolve foam. Also, because it is a laminating resin it does not contain any wax and will cure "air inhibited" (translate that to "stickey").

Santino Geeson

Pundit

Can I use fiberglass cloth with epoxy?

Because the fiberglass is structural to the epoxy coating rather than the boat hull, it's possible to use a lightweight cloth. Avoid using fiberglass mat with epoxy resins. The binder that holds the mat together is dissolved by the styrene in polyester resins.

Bouazza Incerti

Pundit

Why is my resin still sticky?

Sticky resin is typically caused by inaccurate measuring or under mixing. The three most common sticky issues are: Liquid, runny resin: causes can include not following the correct 1:1 ratio of resin and hardener, or by adding too much colorant. Scrape off liquid resin as best you can and pour a fresh coat.

Oyvind Robohm

Pundit

How long until I can sand epoxy?

It takes about 8-10 hours to be hard enough to chisel and sand. Until that point it is chewy and will simply gum up sandpaper. Until that point it is chewy and will simply gum up sandpaper.

Tasleem Oestreich

Pundit

What helps fiberglass resin heal faster?

Use a hot air gun, heat lamp, or other heat sources to warm the resin and hardener before mixing or after the epoxy is applied. At room temperature, supplemental heat is useful when a quicker cure is desired.

Sayd Centenera

Teacher

Can you sand fiberglass resin?

Sand small pieces of fiberglass by hand with medium-grit sandpaper. Use 120- to 180-grit sandpaper or a sanding block and move it back and forth over the surface. Only sand until the glossy finish starts coming off and the surface is no longer shiny. Sand the whole surface of the fiberglass.

Jhony Emtsov

Teacher

At what temperature does fiberglass resin burn?

Above 60, 80, 100 Celsius, depending on resin, the resins that hold fibreglass together begin to rapidly decompose, leaving weak spots and bubbles in the laminate.

Ricarda Helmbrecht

Teacher

How long does fiberglass epoxy take to dry?

Epoxy Rule of Thumb
A general rule of thumb for epoxy curing is this: if your project is important, cure it warm, slow, and long. Cold curing doesn't hold strength very well. A good bet is to allow 72 hours of setup time for full strength building of adhesive bonds to form and mature.

Adonay Linley

Teacher

How thick can you go with body filler?

Thickness. There is no minimum thickness for Bondo, but there is absolutely a maximum. You do not want to apply body filler to anything that is thicker than about a 1/4”.

Dorit Tovah

Reviewer

Do I need to sand between coats of polyester resin?

Polyester Laminating Resin. Two-part polyester resin keeps fiberglass in place on vertical surfaces during layups, and remains tacky between coats for maximum adhesion when laminating. No sanding between coats.

Cleofe Gaspert

Reviewer

How long before you can sand fiberglass?

Btw if you have to wait for a time in between coats of up to about 2 or 3 days ( varies with brands) youll need to remove blush, then you can apply a next coat. longer wait give a light sand before recoating. Never sand into the glass fabric which is the reason for applying a coat after fabric is filled.

Lasana Pinna

Reviewer

Can body filler be used on fiberglass?

The reason we use fiberglass filler in auto body repair is not really the added strength, but for the waterproof properties. It is recommended to apply a thin layer of fiberglass filler over any welding that is performed. Body filler absorbs moister, which will leads to corrosion and rust.

Leticia Blaser

Supporter

Can you use epoxy on fiberglass?

Epoxy works well as a thin film
So when it's used as a thin film it stays sticky and tacky, because a higher percentage of the resin you're using is exposed. As a result, it has limited use if you want to repair well-cured fibreglass laminates using only a thin film. Epoxy doesn't have the same problem.