Frequently question and solution of fiber glass production

Fiber glass UPR


1、Gelcoat wrinkled

Formation reasons:The gelcoat layer solidified insufficient to carry out the next step.

Solution:According to the ambient temperature, humidity, adjust the formula, curing fully after the construction.

2、Uneven colors

Formation reasons:Color paste has expired or stratified,the paste is mixed unevenly after being added.

Solution:Mix well before using the paste,stir well after adding the resin.

3、Sundries on the surface

Formation reasons:Contaminated by smoke, dust and insects.

Solution:Keep the operation place clean.

4、The surface of the product is sticky

Formation reasons:The resin does not contain enough wax.

Solution:Add wax to the resin.

Formation reasons:Mix with other water or other solvents.

Solution:Keep the operating place and tools clean, and no solvent should be added to the resin.

Formation reasons:The amount of cobalt water and curing agent is insufficient.

Solution:Increase propriately cobalt water, methyl ethyl ketone.

5、Flow glue serious

Formation reasons:The amount of cobalt water and curing agent is insufficient.

Solution:Increase propriately cobalt water, methyl ethyl ketone.

Formation reasons:Resin viscosity too low.

Solution:Added appropriate amount of thixotropic agent.

6、Product layered

Formation reasons:Bad glass clothor or wax.

Solution:Dewaxing treatment or replacement of glass cloth.

Formation reasons:Improper handling, too much or too little resin.

Solution:Use defoaming stick carefully to make resin content uniform.

7、Too much bubble

Formation reasons:Improper selection of glass cloth.

Solution:Use a suitable glass cloth.

Formation reasons:Resin viscosity too high.

Solution:Add styrene, adjust viscosity, use a stick to roll.

Formation reasons:Overdosage of resin.

Solution:Appropriate control of gum content.

8、White product

Formation reasons:Resin mixed with water or moisture.

Solution:Note resin storage conditions: drying glass cloth before producing.

Formation reasons:The operating environment humidity is too high.

Solution:Controls the temperature and humidity of the environment.

9、Burnt product

Formation reasons:Product is too thick.

Solution:The thickness of disposable molding products should be controlled below 10mm.

Formation reasons:Too much curing.

Solution:Reduce accelerant use.

10、Poor curing

Formation reasons:Too little curing agent, accelerator dosage.

Solution:Increase the dosage of accelerant and curing agent.

Formation reasons:Curing agent activity is poor.

Solution:Replace curing agent.

Formation reasons:The curing agent didn't mix well.

Solution:Mix the ingredients well.

Formation reasons:Glass cloth contains too much water.

Solution:Use the glass cloth after baking.

11、Uneven thickness

Formation reasons:The glass cloth is not properly laid.

Solution:Concentrate your thoughts and work carefully.

Formation reasons:Too much resin, glass cloth displaced.

Solution:Control the amount of glue.

12、Products warp

Formation reasons:The product area is too large.

Solution:Appropriate reinforcement.

Formation reasons:Demoulding before complete curing.

Solution:Demoulding after curing.

13、Product deformation

Formation reasons:Deformation of the molds.

Solution:Repair and correct molds.

Formation reasons:Improper placement after demoulding.

Solution:Support the product with brackets after demoulding.

14、Local contraction

Formation reasons:Too much local resin.

Solution:Do not let the corner, groove resin stagnant too much.

Formation reasons:Local thickness is too large.

Solution:The product is fully cured and then reinforced.

15、Demoulding difficulty

Formation reasons:Mold design.

Solution:Avoid right angles in mold design.

Formation reasons:Curing agent, promoting dose is insufficient.

Solution:Extend the demoulding time.

Formation reasons:No release agent or poor release agent is used.

Solution:Use a better release agent.

Formation reasons:Resin mold is not applicable: mold has hard mold, soft mold.Such as Model S30127 is not applicable to hard mold.

Solution:Choose a suitable mold.

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