MEETOOT 12pcs Phenolic Resin Cover 28 Threads 28mm Black Poly Seal Screw Caps for Daily Chemicals, Food, Cosmetics Bottles

Specification: Type: Poly Seal Screw Cap Thread: 28 Diameter: 28mm Material: Phenolic Resin (Bakelite) Color: Black Package includes: 12 x Poly Seal Screw Caps It can be equipped with a a Boston glass bottle made of sodium calcium and medicinal grade. A conical LDPE plug inside the Bakelite cover can be used for chemical reagents, flavors and fragrances, essential oils, and so on. Professional molding bottle, chemical bottle selected by the laboratory, corrosion resistance, acid and alkali resistance, good sealing. Easy to grasp: there are teeth around the white tin bottle cap. You can easily tighten the cap, which is easier to hold and seal.

• Made of durable phenolic plastic, it can withstand fermentation pressure and chemicals. It can be reused and durable. Please confirm that the bottle mouth diameter is 28mm before purchase, otherwise, it is not applicable
• Insert itself around the sealing area to create a sealing environment, keep its liquid contents in the bottle, and prevent liquid leakage, carbonation, and gas escape
• Food grade is very suitable for pharmaceutical and industrial purposes. The thermosetting plastic cover has the characteristics of high-temperature resistance (above 200 Centigrade), chemical wear resistance, and chemical volatility resistance, and forms an ultra-tight seal
• It is widely used for the caps of soft and hard packaging bottles and hoses of various daily chemicals, food, cosmetics, drugs, etc
• Suitable for Boston Round transparent and amber glass planting cups. It can be used for CommScope tea fermentation and film development chemicals