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Precote – Thread Coatings

General

Precote innovations are based on the patented omniTECHNIK micro-encapsulation technology. Well tried multicomponent acrylate systems are enclosed by a thin polymeric wall. Precote is formed by integrating the individual micro-encapsulated components into lacquertype binders. After applying Precote in its liquid form and drying, the dry, fast-to-handle and corrosion-inhibiting coating is formed.

Technology

When the threaded parts coated with are assembled, the microcapsules are ruptured by pressure and /or shearing loads. The liquid content mixes and cures with the binder system. Thus, the desired locking and sealing effect is produced.

Precote reactive

Reactive Precote coatings are adhesives used for achieving the highest possible locking properties and an extreme sealing effect. In order to allow these advantages the products have to pass a chemical reaction (in most cases a polymerization), that is triggered upon installation. Before the component can be used, the specified curing time must be observed.

Precote reactive material meets the specifications of DIN 267 Part 27.

Precote non-active

Non-reactive Precote coatings are physically drying coating films that have the product-specific properties already after drying. The connection can be loaded immediately after installation. As the locking properties are lower than those of the reactive products, non-reactive products are used in the field of clamping and sealing screw joints.

Precote non-reactive material meets the specifications of DIN 267 Part 28.

Product types

Locking

Precote cures within a short time after assembly to provide reliable locking performance even at highest temperatures and transverse loads.

Sealing

Precote completely fills the thread gap, thereby achieving the required sealing effect.

Assembly

Precote ensures uniform assembly values by optimum friction coefficients.

Disassembly

Precote enables an easy, non-destructive disassembly, even after long periods and high thermal loads.

Applications

Fields of Application

PDF

Precote Chemical thread retention methods