FLUROPOLYMER/FLUOROCARBON/PTFE COATED STUDS,BOLTS,NUTS&WASHERS

Corrosion Protection and Resistant Products and Services for the Oil, Gas, Petrochemical, Power , Marine Industries and Offshore Industries

Fluoropolymer / Fluorocarbon / PTFE coated Stud bolts and Nuts best suited for installations in offshore platforms, petrochemical and chemical plants, installations near the sea and in corrosive environments.
The resin-like bonded coating provides a low coefficient of friction and excellent resistance to many chemicals and acids. PTFE dry film provides lubricity, thus preventing galling in breaking out.

High Performance Coating since last 30 years with the latest foreign technology and most modern coating facilities.

Since 1972, with the introduction of FLUOROPOLYMER coating in America, TEFCOT^TM coated studs bolts and nuts are widely used for enhanced corrosion resistance, permanent thread lubrication and consistently low applied torque to induced tension (clamping load). Since then, almost all international petrochemical, oil drilling rigs and chemical process industries have specified these studs for both offshore and land based applications.

Apart from these TEFCOT^TM coated B7 stud, bolts are installed under sea splash zones and chemical environments with great success

COATING PROCESS

BLINEX FILTER COAT PVT LTD has perfected the Fluoropolymer / Fluorocarbon fastener coating process. Surface preparation of the fastener, prior to coating, is a very important step. We use the latest industry accepted methods to thoroughly clean all the contaminants from the fasteners. Manufacturing oils, rust and scale are removed to ensure the highest quality coating.

Superior corrosion resistance is created by the application of a series of coatings. A metallic base coat is applied first, followed by an adhesion coat. The adhesion coat creates a chemical bond between the base coat and the top coat. The top coat, a heat cured Fluoropolymer coating containing PTFE, is used to seal the two under coatings and give easy on/easy off characteristics.

Fluoropolymer coatings are extremely durable and don’t come off easily removed during normal usage. During assembly of fasteners in the field, the coating can sometimes be damaged. With most other Fluoropolymer coatings, this results in exposed bare metal that quickly begins to show corrosion and causes the coating to fail. Our metallic base coat ensures superior corrosion resistance and continues to provide protection even under the harshest conditions.

Comparisons with other Coatings

Black, cadmium plated, and hot dipped galvanized bolts will freeze when subjected to the corrosive environments found in manufacturing plants, offshore oil rigs etc. Most often removing the nuts requires a cutting torch.

With BLINEX ^TM Fluoropolymer coating, the same nuts and bolts exhibit easy on and easy off characteristics increasing worker safety.

Cadmium plated and hot dipped galvanized bolts provide similar corrosion resistance. These coatings have undergone the standard salt fog test (ASTM B117) and have been rated at 96 hours of corrosion resistance.

With a BLINEX ^TM Fluoropolymer coated bolt that rating jumps to as much as 1000 hours. The additional corrosion resistance allows fasteners to be disassembled quickly, saving lost down time and man-hours.

Galvanizing produces a coating that is uneven, rough and thick. The rough surfaces make assembly difficult and a tight even tension on each bolt impossible. If used in sealing joints such as flanges, heads or inspection covers, the inconsistent tension forms an uneven fit resulting in a high probability of leaks. With a BLINEX^TM Fluoropolymer coated bolt, tighter more consistent tensions are achieved with less required torque.

Fluoropolymer / PTFE Coatings for small components

Coatings for small components like automotive parts, bearings, camera parts, clippers, clock parts, connectors, drills (power, hand), electronic insulators (buss, cap, pin, post, switch, suspension), gears, hinges and pins, instruments, marine hardware, nails, needles, pencil sharpeners, piston rings, springs, tractor parts, typewriters, washers, zipper slides.

There are many formulations of TEFCOT^TM for bulk application for complex small components are coated accurately and completely. And because they are available in a wide range of colors, no separate Colour finish is needed - saving time ands cost.

A major application area is in the automotive, chemical, textile, electric etc. industry where TEFCOT^TM coatings on small fasteners give corrosion resistance and ensure correct tensioning from the applied assembly torque.