This is the most popular technique for making composite products. The worker moulds the product manually with brushes, rolls or special sprayers, so the quality of the final product depends to a large extent on the worker’s skill.
Our wide selection of resins and reinforcement materials as well as the flexibility of the technique allow the creation of various products of complicated shapes with low initial investment. Usually, most producers begin with this production technology and later switch to RTM or silicone bag as production increases.
Examples of application:
1. transportation interior and exterior parts 2. pools and baths 3. water drainage troughs for motorways 4. small boats and motorboats 5. architectural and decorative elements
Main suppliers:
Basic materials:
NORSODYNE
H 13
Orthophthalic pre-accelerated thixotropic resin for hand moulding and spraying. Gel formation time 27-33 minutes.
DISTITRON
5119
Orthophthalic pre-accelerated thixotropic resin for hand moulding. Gel formation time 30-37 minutes.
DISTITRON
VE 100 ST
Vinyl-ester pre-accelerated thixotropic resin for hand moulding and spraying. Gel formation time 32-44 minutes.
POLYCOR LP
Industrial gelcoat for spraying and brush application. Supplied in any RAL colour. Intended for products that have no contact with the outer environment.
POLYCOR ISO
Isophthalic gelcoat for spraying and brush application. Supplied in any RAL colour. Intended for use in open air.
GLASSMAT
300/450/600
Emulsion or powder glass mat with a density of 300, 450 or 600 g/sqm. Easy wetting and good drapeability.
GRAVICOL
A wide range of adhesive pastes used to glue two parts together, glue panels or as a filler. Low shrinkage. The pastes can be orthophthalic, isophthalic, or vinyl-ester.
FASTCOTE LP
Semi-permanent release agent to extract polyester or vinyl-ester based fiberglass products from open moulds. The compound is easily applied and leaves a deep gloss without polishing.
MARBOCOTE
625X
Release agent made of wax and polymeric resin. Makes a good gloss. Can be applied as an ordinary wax, though the number of releases is much higher.
Advantages of the technique:
1. products of complicated shapes and bigger sizes can be made with minimal investments in tooling and equipment 2. quick production cycle from drawing to final product 3. easy to change or modify the structure of the product 4. embedded parts can be introduced into the product
Disadvantages of the technique:
1. large labour consumption, low productivity 2. the quality of the products depends on the skills of the workforce 3. not efficient for large-scale production 4. difficult to make uniform products
