PU interior moldings outperform wood and MDF in the metrics that matter for most modern applications — moisture resistance, impact resistance, dimensional stability, ease of install, and lifecycle cost. The comparison is clear, and the choice is a practical one for most projects.
Moisture resistance is the primary advantage. PU is a closed-cell material that doesn't absorb water. Wood absorbs water and swells, and MDF absorbs water and puffs up. In any environment with variable humidity (bathrooms, kitchens, basements, coastal climates), PU is the more durable choice.
Impact resistance is the second advantage. PU doesn't dent the way softwood does, and doesn't chip the way MDF does. The closed-cell structure of PU holds together under impact, and the finish stays intact. Wood dents, MDF chips, and both need to be repaired or replaced.
Dimensional stability is the third advantage. PU doesn't move with the humidity, so the miters stay tight and the joints don't open. Wood expands and contracts with the humidity, and the movement is visible at the miters and the joints. MDF moves less than wood, but it still moves enough to cause problems at the joints.
Ease of install is the fourth advantage. PU is lighter than wood, easier to cut than MDF, and the pre-primed surface means the painter's job is one topcoat instead of three. The install is faster, the labor cost is lower, and the result is more reliable.
Lifecycle cost is the fifth advantage. PU has a higher initial cost than MDF but a lower lifecycle cost, because it doesn't need to be replaced. The lifecycle cost of PU over 20 years is significantly lower than the lifecycle cost of MDF or wood, particularly in humid or high-impact environments.
For sourcing, the right conversation with the factory is about the specific application. The factory can advise on the right PU product for the application, with the right density, the right profile, and the right finish. The factory's experience with the specific application is the most valuable asset in the conversation.
A practical note on the aesthetic. The aesthetic gap between PU and wood or MDF has narrowed significantly. PU can be painted to the same finish as painted wood or MDF, with no visible difference. PU faux wood finishes can replicate the look of stained wood, with a close-but-not-identical match. For applications where the material is the design (a stained wood interior, a high-end traditional interior with a wood budget), wood is the right answer. For applications where the painted finish is the design, PU is the right answer.
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Frequently Asked Questions
Q: What is your factory MOQ?
A: MOQ depends on the product line: stock cornice and skirting profiles start at 200 linear meters per shipment, wall panels at 50 square meters, and custom OEM/ODM profiles at 500 linear meters or 1,000 pieces. Sample orders are accepted for most catalog items, with sample fees credited toward the first bulk order.
Q: What are your standard lead times?
A: Stock catalog items ship within 7–15 days of order confirmation. Custom tooling for OEM profiles takes 25–35 days for sample approval plus 20–30 days for bulk production. Air freight from Guangzhou / Shenzhen takes 5–10 days to most major ports; sea freight takes 18–32 days depending on destination.
Q: Do you offer OEM and ODM services?
A: Yes. Our factory offers full OEM (your brand, our tooling) and ODM (your 3D model or sample, our design team reverse-engineers and produces custom tooling) services. We can sign NDAs, work from hand sketches, photographs, or CAD files, and ship samples for approval before bulk production.
Q: What are your payment terms?
A: Standard terms are 30% T/T deposit on order confirmation and 70% balance against a copy of the B/L. For new buyers we also accept 100% L/C at sight. Long-term partners can apply for open-account terms after three successful orders.