OUR PRODUCTION TECHNOLOGIES
Model and Mold
Master Model
Standard master models are typically produced using a tool tray to which an epoxy or polyester putty has been applied, or a foam-based glass-reinforced laminate base. Once set, the bonding becomes final.
CNC spindles to create the final surface before finishing. The final step is to apply a primer and top coat that has been finely sanded and treated with a high gloss finish.
Master model making materials are: Mold board, PU and epoxy foam, polyester and epoxy paste, primer and top coat
Shape Stabilization
5-axis CNC milled accuracy and finishing
High volume production
10m x 6m x 4,5m
Glossy Polished Surface
Glossy and polished surface area
Single or Multi-Section Models
Modular production of single or multi-section models
Double Gel Coating and Curing
Double gel coat and post curing
Durability
Use of only quality mold materials
Mold-lifespan
Mold body support needed for mold life
Post production repeatability
Excellent part production repeatability
Options
Water-based heating system options
Lazer Tarama, QC Dokümantasyonu
Lazer tarama ve QC dokümantasyonu
FRP Mold Production
FRP molds, which have the necessary mechanical properties for the molding of finished composite parts, are produced from high quality, surface perfect master models. Large scale single and multiple chamber FRP molds: built for hand layup, spraying, RTM and infusion processes.
FRP Mold making materials are: Polyester molding resins, Epoxy molding resins, Vinyl and epoxy molding gel, customer-specific fabric solutions manufactured by Poltekin Polyester.
Direct Negative Molding
The Model and Mold Center also manufactures large-scale molds with a very cost-effective direct molding technique to produce prototypes and provide a quick solution for projects with limited budget or limited time.
Our Production Technologies
Production Methods
As Poltekin Polyester, you can find our production methods and techniques below.
Hand-layup Method
It is the most used method for large-area FRP molding. After the release agent is applied, the gelcoat is applied. After the gelcoat layer has hardened, it is applied with a fiberglass and polyester brush or a wool roller. 25-35% glass fiber reinforced polyester product can be obtained by hand lay-up, which is a molding method that requires low fixed capital investment. Since it is a labor-intensive production method, capacity depends on the number of labor and molds. An average of 2 products can be taken per day from a mold.
Resin Injection Method
In this production method, two-sided products are obtained by using two molds, male and female. Special glass felt (continuous felt) produced for resin injection is placed on the mold and the molds are closed. From a pre-prepared resin injection point, polyester is injected into the mold under pressure. With the resin injection method, a higher quality product is obtained more quickly and economically than hand laying.
SMC/BMC Molding
In this production method, two-sided products are obtained by using two molds, male and female. Special glass felt (continuous felt) produced for resin injection is placed on the mold and the molds are closed. From a pre-prepared resin injection point, polyester is injected into the mold under pressure. With the resin injection method, a higher quality product is obtained more quickly and economically than hand laying.
Fiber Wrapping Method
It is a molding method used especially for the production of pipes and tanks. It is the form of winding rovings made of continuous glass fiber on a rotating mold at certain angles after being wetted from the polyester bath.
Thermoplastic Injection/Extrusion Method
While extrusion machines are used in the molding of profile type products, injection machines are used in the molding of complex shaped products. Injection and extrusion machines work in principle similarly. The resin, which is given into the machine from the feeding chamber in the form of granules, is heated in a heating zone and rendered fluid, and while homogeneous mixture is provided on the one hand, it is transported towards the outlet end on the other hand.
What kind of file do you offer with the packages?
In extruders, profiles are drawn in accordance with the mold shape with the help of pressure effect and pulling apparatus through the mold placed at the exit end, while in injection machines, fluidized thermoplastic resin is injected into the closed mold located right next to the exit nozzle, and it is cooled and hardened in the closed mold.
