Volume, closing and surface control for rigid foams.
The mold is defined by formulation, density, expansion, volume, reaction, closing, venting, temperature and final geometry.
What is a rigid polyurethane mold and when is it used?
It is the tool where polyurethane, injected or poured, reacts, expands and hardens into the shape of the cavity.
To produce thermal insulation, technical housings and rigid, lightweight industrial components.
If the part must be soft and recover its shape, like a seat or support, you need a flexible polyurethane mold.
Fundimoldes designs and builds the mold. The parts are then produced with it, usually at the customer’s plant or their molder’s.
Types and scope.
Tooling for forming rigid foam around a part, housing or volume. Ideal for: Refrigeration, panels and thermal applications.
Forming of components with defined surfaces and closures. Ideal for: Equipment, covers and industrial products.
Low-density rigid parts with a geometric or support function. Ideal for: Industrial and assembly applications.
Configurations adapted to expansion, venting and demolding. Ideal for: Parts with critical volume and finish.
Technical data sheet.
Rigid polyurethane injection or pouring
To be validated based on foam volume, closing and thermal system
Aluminum, steel or combinations depending on design
Dimensional control, closing validation and process trial
Actual capacity subject to technical validation based on geometry, weight, material, tolerances and process.
How we work.
We review the part, PU formulation or system, density, volume, shrinkage and finish.
We validate the injection or pouring method, metering, closing, temperature and handling.
We define cavity, structure, closing, venting, demolding and surfaces.
We produce components in aluminum, steel or a combination depending on design.
We check dimensions, closing and the process trial when included.
Technical considerations.
The system’s reaction can exert forces on the mold; structure and closing must be evaluated.
Materials, seals, coatings and release agents must be compatible with the polyurethane system.
Air and gas evacuation affects filling, defects and finish.
It must document formulation, temperature, metering, time, density and acceptance criteria.
Why Fundimoldes?
Engineering, patternmaking, casting, machining, assembly, finishing, validation and after-sales support under one operation.
Every proposal is backed by a review of geometry, material, process, equipment and real-world conditions.
Drawings, data sheets, reports and inspections are included according to project scope.
Fundimoldes can manufacture, maintain, repair, modify and reproduce tooling components.
Information for your quote.
Reply within 24 business hours via WhatsApp +57 321 227 8823.
Common questions.
Do you make molds for both rigid PU injection and pouring?
Yes. We handle both processes, subject to evaluation of the system and equipment.
What materials do you use for the mold?
Aluminum, steel or combinations depending on design, volume, closing and cycle.
Can you make a mold from an existing part?
Yes, through measurement, 3D scanning and reverse engineering.
Do you include thermal control?
It can be evaluated based on process and cycle; it must be defined during engineering.
Services for your polyurethane mold.
For seats, supports and soft foam parts.
3D CAD of cavity, venting and demolding.
Machining of cavities and tooling components.
Digitize an existing part to design its mold.
Diagnosis and modifications of molds in production.
Send a drawing, sample or photos and the expected quantity.
Request a quote for your rigid polyurethane mold
Share drawings, a 3D model, photos, dimensions, material, quantity and operating conditions. Our technical team will validate the manufacturing route and scope.