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Technical articles on composite materials, boat and yacht building, production methods and fire certification.
Company
İbrahim Zengin and Arda Zengin
The generation that founded a workshop and the generation that took it to international standards. The two names behind Zenginler İmalat.
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Company
About Zenginler İmalat
From a workshop in Adapazarı to a plant producing EN 45545-2 HL3 classified laminate: a manufacturing story since 1977.
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Certification
The IMO 2010 FTP Code and Fire Safety at Sea
When a fire starts at sea you cannot call the fire brigade. That is why IMO's rules for shipboard materials are as strict as they are.
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Certification
What Is EN 45545-2?
Every material used in European trains and trams has to pass this standard. R sets, HL levels and how to read a classification.
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Certification
Fire Certification for Composites
In a fire it is usually not the flame that kills but smoke and toxic gas. A composite fire certificate measures exactly that.
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Certification
ISO Certification in Composite Manufacturing
In composites, quality is invisible. Void content, resin ratio and degree of cure can only be guaranteed by a system — and that is exactly what a certificate proves.
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Production Methods
Composite Production Methods Compared
Same resin, same glass — different process, double the performance. A direct comparison of the four main composite processes.
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Production Methods
What Is Pultrusion?
The only continuous, fully automated composite process. Constant-section profiles, metres long, lighter than steel.
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Production Methods
Resin Transfer Moulding (RTM)
Parts with two moulded faces, short cycle times and almost no emission. Where RTM belongs in series production.
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Production Methods
The Vacuum Infusion Process
Instead of brushing resin in, let atmospheric pressure pull it. The result: double the fibre content, no voids and quality independent of the laminator.
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Yacht & Boat
Composite Materials in Yacht Building
Two yachts of the same length built from different materials can differ by a factor of two in annual running cost. What material choice really buys you.
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Yacht & Boat
Composite Boat Building
How is a boat hull moulded in one piece? The real workflow of composite boat building, from plug and mould to launch.
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Materials
Sandwich Composites and Core Materials
How do you make a panel ten times stiffer at the same weight? The answer is the sandwich: two thin skins and a light core between them.
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Materials
What Is Gelcoat?
The first layer sprayed into the mould is the last surface you see on the boat. Gelcoat determines both the finish and thirty years of water resistance.
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Materials
What Is GRP?
Fibreglass, GRP, FRP, CTP — all names for the same material. Why the marriage of glass fibre and polyester became so widespread.
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Materials
What Is Polyester Resin?
In industry, 'polyester' does not mean the clothing fibre but a thermosetting resin. From cure chemistry to resin grades, here is what matters.
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Materials
What Is a Composite Material?
Combine two materials and obtain a third that outperforms both — that is the founding idea of composite engineering. Matrix, reinforcement, interface and process.
Read ArticleTECHNICAL KNOWLEDGE
We have been manufacturing composites and polyester since 1977. In this blog we bring together what we have learned on the shop floor and the technical literature of the industry. Every article carries a source list; documents and test results belonging to our company come from our own records.
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