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Phenolic Caps

Phenolic Caps

Phenolic caps are made of thermoset plastic material known for its binding properties. Phenolic caps have strength and durability with heat-resistant and insulating properties; they are widely used in laboratory applications. Good resistance to chemical corrosion and low moisture absorption. These Phenolic caps are autoclavable for sterilizing applications. These Black phenolic caps are very ideal for chemicals, essential oils and any other strong products. These Phenolic Caps are highly durable and long lasting . These Phenolic caps are tolerant for higher temperatures than Plastic caps. Our Phenolic caps are available with a varied range of liners like. 1. Pulp Faced 2. Rubber Liner 3. PTFE faced Rubber Liner

Products
1 Screw Thread Caps for Culture Tubes

Screw Thread Caps for Culture Tubes
Black Phenolic Caps with Bonded Liners are excellent for general laboratory use. Available in an exceedingly variety of thread sizes and choice of lin...
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2 Screw Thread Caps for Vials

Screw Thread Caps for Vials
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Frequently Asked Questions

A phenolic cap is a kind of closure that is strong, long-lasting, and resistant to heat and chemicals. It is usually composed of thermoset plastic. These caps are frequently used to seal goods that contain essential oils or other caustic substances, as well as in pharmaceutical and scientific laboratories. 

 

Important attributes:

  • Heat Resistance: Because phenolic caps can tolerate high temperatures, they can be used in situations that call for autoclaving, or sterility.
  • Chemical Resistance: They provide strong protection against a variety of chemicals, including those that may cause other plastics to rust.
  • Durability: Phenolic caps are renowned for their capacity to keep a tight seal and their long-lasting work.

Polypropylene and phenol are two separate substances with differing chemical compositions and characteristics. While polypropylene is a thermoplastic that is lightweight, flexible, and has strong chemical resistance, phenolic is a thermosetting plastic that is renowned for its strength, durability, and heat resistance. 

 

Phenolic: 

  • Structure: Phenolic resins are thermosets composed of methanol and phenol. This indicates that when heated, they go through a chemical process that makes them permanently hard and infusible.
  • Properties: Phenolic materials are known for their excellent electrical insulating qualities, strong heat resistance, and stiffness. They are also comparatively robust and long lasting.
  • Applications: Phenolic resins are frequently utilised in adhesives, laminates, automobile parts, and electrical components. According to Atlas Fibre, they are also utilised in the manufacturing of orientated strand board and plywood. 

 

Polypropylene

  • Structure: Polypropylene (PP) is a thermoplastic polymer composed of propylene repeating units. Unlike thermosets, thermoplastics can be melted and reformed repeatedly.
  • Properties: Polypropylene is flexible, lightweight, and resistant to most chemicals, especially bases, alcohols, and acids. It also handles fatigue well and has a high melting point.
  • Applications: Polypropylene finds usage in a multitude of industries, such as textiles, medical supplies, automotive parts, and packaging. It is also frequently used to make plastic containers and furniture.

 

 

A PTFE (polytetrafluoroethylene), also referred to as Teflon, liner or layer is incorporated into a PTFE cap, a closure that is frequently used for bottles and containers. Strong acids, solvents, and high-purity chemicals are just a few of the materials that may be stored in this liner due to its exceptional chemical resistance. PTFE is a popular material for closures because of its non-stick qualities and capacity to form a tight seal with minimal moisture transmission. 

 

Polytetrafluoroethylene, or PTFE:

This artificial fluoropolymer is well-known for its remarkable nonstick qualities, high melting point, and chemical resistance. Teflon, its commercial name, is frequently used to refer to it.

  • PTFE-lined Caps: These caps combine the advantageous qualities of PTFE with the structural strength of another material, such as polypropylene or phenolic. Depending on the particular cap, the PTFE layer might be either a coating or a liner.
  • Applications: High-purity chemicals, analytical samples, and other reactive materials are frequently stored in labs using PTFE-lined caps. Additionally, they are employed in the storage of pharmaceutical and diagnostic reagents. 
  • Benefits: The PTFE lining reduces moisture transfer, stops leaks, and acts as a barrier against chemical attack. It has a strong resistance to temperature as well.
  • Variations: For improved sealing and chemical resistance, certain PTFE-lined caps may additionally have a silicone or foam layer (such as F217).

A phenolic black cap is a kind of screw cap constructed of a phenolic resin that is commonly used in industrial and scientific environments. Because of its strength, resilience to heat, and longevity, this material may be used to secure and contain a wide range of materials, including chemicals and volatile compounds. To guarantee a tight seal, they frequently have a liner made of rubber, polycone, or PTFE.

Heat and pressure are used to cure layers of paper or cloth that have been wet with phenolic resin to create a composite material known as black phenolic, a form of thermoset plastic. Strong, resilient, and impervious to heat, moisture, and chemicals, it may be used for a wide range of tasks, such as toilet walls, laboratory work surfaces, and some kinds of packaging.

The composition and characteristics of polyethylene and phenol are different, making them separate materials. Often used for its firmness and chemical and heat resistance, phenolic is a thermoset plastic composed of formaldehyde and phenol. In contrast, polyethylene is a thermoplastic; high-density polyethylene (HDPE) is a popular kind that is renowned for its recyclable nature, resilience to water, and durability.

The composition and characteristics of polyethylene and phenol are different, making them separate materials. Often used for its firmness and chemical and heat resistance, phenolic is a thermoset plastic composed of formaldehyde and phenol. In contrast, polyethylene is a thermoplastic; high-density polyethylene (HDPE) is a popular kind that is renowned for its recyclable nature, resilience to water, and durability.

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