At the conference, a presentation was given that cover the guidelines and further choice of, mold release agents for the footwear. While choosing the best release agent for the footwear was chosen according to the suitable parameters and the concerned factors. The trends of the release mold industry were also explained and presented along the product lines related to footwear.
What are mold release agents?
A mold release agent is a kind of chemical that helps in preventing different materials to be collapsed and adhere to their type. The adding of such chemicals will prevent the materials to be bond and will remain in their shape while help in cleaning them more clearly the use of an epoxy release agent is much beneficial with the mold. The resin mold release can not only just use for the footwear but also for the bigger things and so on. Such as epoxy resin to your footwear or between the woods.
The epoxy helps in becoming the barrier between the resin and the mold. When it comes to wood or footwear that its usage is necessary as it prevents the resins to be stuck with the mold. If it gets stuck it will further damage all the mold and as well as your footwear too.
An epoxy release agent is used for:
- Polyester resin
Importance of mold release agents:
As for the industries of shoe soul manufacture, these products plays a vital role as it has been an influence for the unmolded soles appearance and a painting operation, etc. it is used for achieving a better mold quality with high power, provide the best texture and finishing and provide the great uniformity to the entire source.
Factors to be considered:
- Polyester system
- Mold temperature and its activity
- Finishing of paint
- Safety soles
As some of the materials such as foam, plaster are porous and can absorb the agent more quickly which then becoming ineffective so the epoxy release agent helps in barrier the sides and seal it overall
Mold release spray:
It consists of two forms for the usage of epoxy release agent, Wax, and a spray. A spray is much beneficial for footwear or for small things as it can be easily sprayed on it. While on the other hand, the wax gets used to being rubbed on different surfaces. The spray blends the aerosol with the spray as aerosol promote and delivers the wax substance in the mold as a barrier while the wax substance will be there on the footwear and the aerosol further will evaporate.
Use of spray agent on the sole:
The spray is best to be delivered on the sole footwear as it covers the corners and the surfaces of the shoe sole. In the industry, the shoe is manufactured and the spray is delivered on the corners to release the agent overall the surface and the uneven corners of it. Sometimes while manufacturing some of the polish remains left on the resin epoxy which you can get rid of by applying and washing it with water and soap but it is not necessary to wash.
Applying the mold release spray:
The spray for the shoe sole must be free from grease, marks and must be clean. It should be free of any dirt as it is mandatory for every type of mild releases agents such as spray on the wax that it should be clean in all-purpose. The reason for this is if any little particle of dirt or residue remains stick on the footwear before the casting it will stop the releasing agent to be mixed and stuck to the mold. The mold releases agent will get slipped out of the foot sole without fulfilling its duty and purpose. As the casting will be removed but will be difficult to demote it and this could damage and tear your sole footwear which is further will be of no use.
Once you have cleaned the surface, now use your mold spray but first shake it so it can be mix and easily release the spray. Apply it or spray on the whole mold and the surface. Make sure that the layer to be build must contain a single one, spray it carefully, and don’t leave any corner as every angle should be covered by the spray. While spraying the can should be 20-30 cm away from the sole for proper spraying. Leave for 2 minutes then now after getting it dry you can polish it easily with a little soft cloth. For the new molds just apply at least different layers. But after a required time as the layers upon layers will disturb the surface and overall the coating will be damaged.
Mold release wax
Mold release wax cannot be obtained in a spray bottle as it comes in a box. Some waxes have a paste liquid texture while some can be obtained in the liquid form. The wax can be applied to the shoes with the help of a cloth or a brush. Directly apply it from the container on the mold and rub it on the mold for a better texture. Wax can be used on different surfaces besides silicon.
Use of mold release wax:
The mold release wax can be used on larger surfaces. For fulfilling the small corners the spray is better for the footwear as the cloth will be difficult to reach the little unseen corners. For cleaning the mold, firstly clean it with warm water or with the help of steel that will remove any residue it contains.
Applying mold release wax
The wax is usually in the liquid form when it is used for shoes so shake it before using. Simple take a little wax and dump it into the cloth with the help of a spatula and apply the wax overall with the cloth. Leave it for a couple of minutes, then take a different cloth and apply another layer on it and leave for overnight