Rex Wax

Black Diamond Hot Wax Black Friction Modifier Block

The REX Black Diamond Hot Wax Friction Modifier Block contains the concentrated lubricating additives used in REX Black Diamond Hot Wax. The additives are consolidated into a single solid block, allowing riders to customize the concentration of friction modifiers in their hot wax mixture without purchasing another complete package.

Designed to be used with the white REX paraffin base wax blocks, the modifier block provides flexibility when preparing different wax blends for varying riding conditions. Increasing the concentration of friction modifiers creates a more performance-focused blend, while using a lower concentration provides a longer-lasting, more versatile mixture.

The additive block is hand-cast in REX's product development laboratory in Finland and is intended exclusively for use with REX Black Diamond Hot Wax base blocks.

Key Features

• Contains concentrated Black Diamond lubricating and friction-modifying additives
• Allows customization of friction modifier concentration in hot wax mixtures
• Hand-cast in REX's product development laboratory in Finland
• Designed to be melted together with REX white paraffin base wax blocks
• Provides an economical way to prepare additional batches using leftover base wax
• Helps tailor chain wax performance to different riding conditions
• Compatible with the original REX Black Diamond Hot Wax formulation

Who It's For
Cyclists already using REX Black Diamond Hot Wax who want to customize their wax formulation, prepare additional batches from leftover base wax, or experiment with different additive concentrations for racing, training and varying weather conditions.

Wax Mixing Options

The modifier block can be combined with different quantities of white base wax depending on the desired performance characteristics.

Mixing Ratio	Intended Application
4 base blocks + 1 modifier	High-performance blend optimized for dry conditions and racing.
11 base blocks + 1 modifier	More versatile blend for wet and mixed riding conditions.
11 base blocks + 2 modifier blocks	Higher additive concentration for extended durability.