CowRC Udder Butter 236ml (8oz) Tub is a multi-purpose, fully waterproof grease engineered specifically to handle the demanding loads and harsh environments of radio control driving. Many standard automotive and marine greases contain petroleum additives that can degrade RC plastics and cause rubber O-rings to swell. Udder Butter uses a specialised formula that remains completely safe on all composite materials, plastics, and seals common throughout the RC hobby, providing smooth, durable lubrication across gearboxes, axles, and suspension pivots.

The formula is completely waterproof, meaning it will not mix with water, break down, or wash away when running in wet grass, deep mud, puddles, or saltwater. Unlike traditional greases that rely on packing large volumes into gearboxes, Udder Butter is highly tacky and adhesive, designed to coat metal friction surfaces thinly and effectively without heavy packing. The 236ml tub format makes it easy to scoop by hand or brush, allowing you to use the fill-and-wipe method across ring and pinion gears, transmission cases, portal assemblies, and suspension linkages.

• Generous 236ml (8oz) workshop tub provides ample volume for multiple vehicle builds

• Fully waterproof formulation maintains lubrication in freshwater and saltwater conditions

• Refined fourth-generation formula proven across rigorous radio control use

• Completely safe on RC plastics, composites, rubber seals, and silicone O-rings

• Highly tacky blend adheres firmly to metal without requiring heavy cavity packing

• Provides strong rust and corrosion resistance across exposed steel components

• Excellent for ring and pinion gears, transmissions, portal axles, and shock linkages

• Genuine CowRC Product

• 1x Tub of CowRC Udder Butter Waterproof Grease (236ml / 8oz)

• For gear applications, press the grease firmly into the gear teeth to fill the valleys, then wipe away excess build-up. Heavy packing of the entire gearbox housing is not required.

• Not recommended for use inside 1/10 scale ball differentials, which require specialised ball differential grease.

• Not recommended for extra-large-scale vehicles weighing 36kg (80 lbs) or more.

• Store in a cool, dry place with the lid tightly closed when not in use.