Polyester resins and gelcoats

Gelcoats

Peroxides (catalysts)

Polyester resins

Thinners

Accelerators

Others

Showing 1-12 of 30 item(s)

Accelerator D

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Designed for Havelpol 12 resin. Recommended dosage 0.5 - 1 g of accelerator per 100 g of resin.

Kč295.17

Butanox M 50 peroxide for curing polyester resins

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The most commonly used version of butanox. Suitable for temperatures above 20 °C. Also available in a red-colored version for visual inspection

Kč434.84

Clear Polyester Gelcoat GS 100 S - Norpol GS Base - S

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The secret of smooth surfaces. Creates a smooth visible layer depending on the surface of the mold. The surface requires no further treatment after removal from the mold. You create the surface directly in the mold. Financial and effective savings. Pigments can be used for coloring

Kč363.83

Cobalt Accelerator for Curing Polyester and Vinyl Ester Resins 1 %

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Accelerates the curing process. Some resins are not pre-accelerated for various reasons. This accelerator allows you to accelerate them just before processing. The standard addition of the accelerator is 0.5-3% of the weight of the resin used. WARNING DO NOT MIX ACCELERATOR WITH CATALYST

Kč531.47

Crystic U 1131 T (ortho) self-extinguishing polyester resin for DIN 5510

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CRYSTIC U 1131 T is a filled, orthophthalic, non-accelerated thixotropic unsaturated polyester resin with low styrene content. It is suitable for fire-resistant/self-extinguishing laminates with reduced smoke generation. CRYSTIC U 1131 T is halogen-free and does not contain heavy

Kč140.55

HAVELcell P1 - Polyester Foam for Sandwich Production

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Reinforced white foam based on orthophthalic polyester resin. It has a viscosity similar to that of a sealant, is thixotropic, and does not run even at a layer thickness of 5 mm. The foam is suitable for creating sandwich structures directly in the mold. By using this foam, you can also significantly reduce

Kč349.19

Havelgelcoat 65 - polyester clear - brushable

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Havelgelcoat 65 is a pre-accelerated isophthalic gelcoat designed for application into molds. It is designed for brush application.\nIt is intended for use in the marine, construction, and transportation industries. It is also suitable for general use. It excels in durability

Kč541.72

Havelgelcoat 65 - polyester white - brushable

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Havelgelcoat 65 is a pre-accelerated isophthalic gelcoat designed for application in molds. It is designed for brush application.\nIt is intended for use in the marine, construction, and transportation industries. It is also suitable for general use. It excels in durability

Kč511.85

Havelgelcoat 97 - polyester clear - brushable

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Havelgelcoat 97 is a pre-accelerated isophthalic gelcoat designed for application in molds. It has excellent adhesion to epoxy resins and pre-pregs. Suitable for brush application, Havelgelcoat 97 can be available in a wide range of colors. The processing technique is at one

Kč497.79

HAVELinhibit 1

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Material suitable for extending gel-time. An excellent aid in the production of large or complex products made from polyester and vinylester resins, especially during the summer months. Recommended dosage 0.1 - 0.6% (by weight)

Kč857.60

HAVELPOL - 2 - white 2%

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HAVELpol 2 - white RAL 9010 polyester resin. It is a pre-accelerated polyester resin developed for hand lamination or spraying. It is suitable for the production of products where coloring is required - bathtubs and other sanitary products. For curing

Kč360.17

HAVELPOL - 4

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HAVELpol 4 is a clear yellowish unaccelerated polyester resin. To cure, it is necessary to mix in two additional components: Accelerator-cobalt and Catalyst-peroxide. The resin is suitable for manual lamination of transparent parts with high resistance and requirements

Kč354.31

Polyester systems have long been among the most widely used matrix resins in the composite industry due to their combination of lower price, easy processing and fast curing. They are commonly used, for example, in transportation, construction, marine applications or in the production of composite moldings.

In this category you will find materials suitable for:

• hand lamination

• repairs of laminate parts

• production of molds and models

• surface treatment of composite products

• technical and industrial applications

What is polyester resin used for

Polyester resin is used as the basic binder in the production of laminates and composite parts. In combination with glass fabric, mats or other reinforcement, it creates a strong, dimensionally stable and durable composite unit.

It is suitable for:

• production of laminate covers, parts and panels
• repairs of fiberglass tanks, fairings, covers and tubs
• lamination of molds and models
• renovations and repairs in hobby and professional practice
• common composite work where the price / performance ratio is important

Polyester resins are traditionally very widespread, especially in GRP / fiberglass applications and common lamination. They are suitable for a wide range of standard composite projects where availability, fast processing and proven technology are required.

What is gelcoat for and why is it important

Gelcoat is a special surface layer used in the production of laminate and composite parts. It is usually applied as the first layer in the mold and after demolding creates a smooth, compact and visible surface of the product.

Gelcoats are used mainly for:

• creating a high-quality final surface
• improving resistance to moisture and weathering
• reducing the appearance of reinforcement
• producing aesthetically clean and professional-looking parts
• repairing and restoring the surfaces of laminate products

In practice, gelcoat is a very common surface layer for laminate products and molds. In polyester systems, it is used especially where it is necessary to combine the mechanical function of the composite with a high-quality appearance and higher surface resistance. Gelcoat is typically applied to the mold and then covered with reinforcement and additional resin.

What applications are polyester resins and gelcoats suitable for

Materials in this category are suitable for a wide range of applications:

Typical areas of application:

• repairs and fiberglass production
• boats, swimming pools, tanks and technical covers
• automotive and motorsport
• mold and model production
• industrial parts and covers
• hobby lamination and workshop projects

Polyester resins and gelcoats are popular where fast technological progress, good surface finish and reasonable production costs are required.

How to choose the right product

When choosing, we recommend taking into account mainly:

Application type

Another product is suitable for:

• hand lamination
• repair of damaged part
• mold production
• final visible surface

Desired surface

If you are mainly concerned with the appearance, smoothness and durability of the surface, a gelcoat or a subsequent system for the final layer is usually the appropriate choice.

Reinforcement type

Polyester resins are often used with:

• glass mat
• glass fabric
• other reinforcement materials for lamination

Environment of use

An important question is also:

• whether the part will be exposed to moisture • mechanical stress
• or outdoor conditions

Why buy polyester resins and gelcoats from us

At Havel-Composites, we select the range so that it is suitable for:

• craftsmen and manufacturers
• smaller workshops, service repairs and hobby use

You will especially appreciate the proven products for composite practice:

• possibility to connect to other materials for lamination
• easy selection of compatible accessories

Related categories that may be useful to you

For complete work with lamination, we also recommend:

Glass fabrics and mats
Carbon fabrics
Epoxy resins
Hardeners and accessories
Rollers and tools for lamination
Separating agents
Fillers and technical additives