How to Choose the Right Fiberglass Planter Molds?

As a buyer, choosing the right fiberglass planter mold is crucial to product quality, production efficiency, and long-term cost control. Here are some systematic selection tips to help you make wise purchasing decisions.

 

Clarify product requirements and technical parameters

Determine the type and specifications of the flower pot

Dimensional accuracy requirements: Measure and confirm the key dimensions of the required flower pot, such as the caliber, height, bottom diameter, etc. The error range should be controlled within ±0.5mm

Structural complexity: Evaluate the texture depth of the fiberglass planter mold (recommended not to exceed 3mm), chamfer angle (optimal 45-60 degrees), and demoulding slope (recommended 1-3 degrees)

Surface treatment requirements: Determine whether matte, glossy, or special texture effects are required

 

Production capacity and production conditions evaluation

Calculate the average daily/monthly production demand, and the life of a single set of molds should meet at least 3,000 demoulding times

Confirm the temperature and humidity conditions of the production environment (ideal range: temperature 15-30℃, humidity ≤70%)

Evaluate the demoulding method (manual/mechanical) and the compatibility of supporting equipment

Core material and process evaluation

Gel coat layer thickness: should reach 0.4-0.6mm, use Barcol hardness tester to test (standard value ≥35)

Reinforcement layer structure: at least contains 2 layers of surface felt + 3 layers of chopped felt, with a strength deviation in warp and weft directions of ≤15%

Degree of curing: passed the acetone wiping test (no dissolution, no stickiness)

 

Key cost-effectiveness indicators

Demolding efficiency: Excellent molds should achieve a demolding cycle of ≤90 seconds/time

Scrap rate control: The scrap rate of qualified mold matching production should be ≤3%

Maintenance interval: High-quality molds should ensure ≥500 demoldings without maintenance

 

Actual use test plan

Small batch trial production verification, at least 3 rounds of continuous demolding tests, 50 times each round

Inspection:

Dimensional change of the first and 50th molded products (Δ≤0.3mm)

Mold surface wear (no visible fiber exposure)

Release agent residue (≤0.1g/time)

 

Accelerated aging test

Ultraviolet irradiation test: 500 hours is equivalent to 1 year of outdoor use

High and low temperature cycle test (-20℃~60℃) 20 cycles

Result judgment criteria: mold deformation ≤0.2%, no surface cracking