There are basically two types of internal air bubbles in epoxy systems. The first is the bubbles caused by the air entering the system during mixing, and the other is the bubbles caused by the gas formed during the reaction of the resin and hardener. Apart from internal reasons, the physical conditions and chemical effects of other components with which epoxies are used may also cause external air bubble formation.
Hava kabarcıkları ve baloncuk oluşumunu engellemek veya minimum seviyeye indirmek için aşağıdaki hususlara dikkat ediniz.
- Do not mix at very high speed.
- Observe the maximum thickness rule for the epoxy resin type you are using. Do not exceed the specified application thickness.
- Using a vacuum machine eliminates the possibility of internal air bubbles to a great extent.
- Overheating the resin that needs to dry at room temperature or in extremely hot environments such as an oven. drying may cause air bubble drying caused by the sudden reaction. (Except for oven-drying epoxy resins produced for this purpose.)
- Do not use coating type resins in casting type works.
- Do not use casting type resins whose consistency has thickened due to the cold environment
without normalizing their consistency. Check out our article titled “My Resin Has Condensed”.
- Bubbles may come out of the object to be placed in the epoxy system. Cast by considering the possibility of air formation in the cavities on the object. For example, while epoxy penetrates into the air spaces in the wood, bubbles can come out of these. If necessary, perform a two-stage casting.
- Bubbles form on absorbent surfaces due to the impregnation effect of epoxy. Wood, concrete etc. Do not pour or coat the absorbent surfaces without priming.
- Foaming and blistering may occur due to the reaction of damp surfaces and/or water mixing with the epoxy. Do not apply directly to damp surfaces or objects. (Except for moisture-tolerant epoxy systems produced for this purpose.)
- Do not use water-based paints as colorants.
- Choosing products, environments and equipment are extremely important for a clean and glassy casting.