Functional Coatings
Functional coatings are applied when fasteners require a surface treatment that performs a specific technical role beyond basic protection. These coatings are typically made from polymer-based materials such as polyamide, plastisol, or polyolefin and are selected based on performance requirements and operating conditions.
TufLok® and Nytemp® Patch
These coatings provide dependable thread locking for fastened joints. A highly elastic, wear-resistant polyamide is applied to selected areas of the threads, filling the axial clearance between the screw and the mating thread. The result is a tight, vibration-resistant connection that maintains consistent locking performance over repeated use.
Product Features
- For nearly all materials
- No hardening time - can be stressed immediately
- Can be reused several times
- Resistant to alcohol, oil, fuel and most thinners
- Can be stored for an unlimited period of time
- TufLok® Patch temperature range –56 °C to 120 °C
- Nytemp® Patch temperature range –56 °C to 200 °C
Precote® 5 – Adhesive coating
Precote® 5 is a nonreactive, film-forming coating that incorporates mineral-based solid lubricants for use on threaded components. It provides an immediate sealing solution for cylindrical and conical threads and is safe for handling and assembly. Once applied, the coating dries to a clean, tack-free finish that ensures smooth installation and reliable sealing performance.
Product Features:
- Dry and tack-free lubricant film
- Seals immediately after assembly
- Physiologically harmless, as well as in the preparation as in the coating processes
- Thread friction values are not altered
- Prevents corrosion in the threaded connection
- Can be applied on all threaded metal materials, also on plastics
- Good chemical resistance
Nyseal® – Under-head coating
Nyseal® is a polyolefin-based plastic coating applied directly under the head, flange, or thread run-out of screws and other threaded components. It provides an integrated sealing solution, eliminating the need for separate washers, seals, or O-rings.
Product Features
- Excellent sealing effect
- Coating on nearly all metal materials
- Depending on exposure to loads, coating can be reused several times
- Prevents contact corrosion under the screw head
- No additional washers or seals required
- High resistance to chemicals and oils
Nyplas® – Under-head coating
Nyplas® is a modified plastisol coating applied beneath the head, flange, or thread run-out of fasteners. It forms a durable, built-in seal that replaces manually installed washers, seals, and O-rings, simplifying assembly and improving reliability.
Product Features
- Sealing/noise insulation immediately after screwing the parts together
- Coating on nearly all metal materials
- Depending on exposure to loads, coating can be reused several times
- Very good sealing properties
- O-rings, washers, etc. are no longer required
- Long service life, no shrinking or desiccation
Precote® 30/80/85 – Adhesive coating
Precote® Micro Encapsulated is a pre-applied locking adhesive designed for threaded components. During assembly, pressure between the mating threads ruptures the microcapsules, releasing the adhesive and curing agent. The resulting bond provides a strong, vibration-resistant locking effect.
Product Features
- Locking effect according to DIN267 Part 27
- For nearly all materials and surfaces
- Fast hardening
- One-time use only
- Resistant to oils, greases, hydraulic fluids and liquid coolants etc.
- Shelf life up to 4 years
Nystay® – Fixing coating
Nystay® is a polyolefin-based precoating applied to the shaft or threads of fasteners to hold them securely in position during transport, handling, and assembly. It helps prevent loss or misalignment of components, supporting efficient, automated installation.
Product Featers
- Holding function
- Coating on nearly all metal materials
- Can be reused
- Non-toxic and environmentally friendly
- Reduces assembly time for final user
- Can be positioned anywhere on the shaft or thread of a fastening element
Questions About Coatings?
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