GNP Defend Silicone Oil

GNP Defend Silicone Oil is a precision lubricant formulated for equipment where the wrong product causes real damage. It is chemically inert, safe for every material found in modern compound bows — composite cam bodies, rubber components, polymer slides, metal axles — and equally at home in airsoft, paintball, and air-powered systems where seal integrity and friction reduction are critical.

One product. Every application. No compromise on materials.

Compound Bow Lubrication — The Right Oil for Modern Bows

Petroleum-based oils and general-purpose sprays like WD-40 degrade the composite cam bodies, rubber O-rings, and polymer cable slides found in modern compound bows. GNP Defend Silicone Oil is the safe alternative — it lubricates the contact points that need it without attacking the materials around them.

Where to apply on a compound bow

• Cam axles (bushing-style systems) — apply a small amount directly to the axle pin every 1,500–2,000 shots. This is the highest-friction point on the bow and the most impactful lubrication you can do.
• Cable slide rail — a light coat along the full length of the cable guard rail. The slide moves under cable pressure every draw — a dry slide adds measurable drag and accelerates cable wear.
• Limb bolt threads — prevents seizing and makes draw weight adjustments easier.
• Limb pocket contact surfaces — a very light application prevents squeaking and corrosion at the limb-to-riser interface.

Never apply to bowstrings or cables — strings require dedicated bowstring wax. Never apply near sealed cam bearings — factory-sealed bearings don't benefit from external lubrication.

For the complete compound bow lubrication guide — including a diagram of exactly where to apply, bushing vs sealed bearing identification, and full application instructions — read: The Complete Guide to Compound Bow Lubrication.

Why GNP Defend Silicone Oil

Chemically inert	Does not react with composites, rubber, plastics, or painted finishes. Safe on every material in a compound bow, airsoft gun, or air rifle system.
Stable lubricating film	Doesn't evaporate or become gummy over time. Stays in place between applications without attracting grit or leaving sticky residue.
Moisture and corrosion protection	Forms a hydrophobic barrier that repels water, blocks rust formation, and protects metal surfaces during storage or adverse weather conditions.
Preserves rubber and seals	Maintains elasticity in O-rings, seals, and rubber components. Prevents the drying and cracking that shortens the lifespan of pneumatic and mechanical systems.
Wide temperature range	Stable from -58°F to +392°F (-50°C to +200°C). Maintains consistent viscosity whether you're hunting in sub-zero temperatures or shooting at a summer range.
Reduces friction and noise	Acts as a slip agent between moving parts, reducing mechanical drag, audible wear, and the shot-to-shot inconsistency that friction causes over time.
Strong surface adhesion	Clings to contact surfaces rather than running off. Stays where you apply it and doesn't require constant reapplication.
200ml or 400ml aerosol	Aerosol application delivers a controlled, precise amount to small contact points — cam axles, cable slides, seal surfaces — without over-application.

All Applications

GNP Defend Silicone Oil is formulated for any system where material compatibility, seal protection, and long-term lubrication matter.

Archery

Compound bow cam axles, cable slide rails, limb bolt threads, limb pocket contact surfaces. Safe for all bow materials — composite cams, aluminum risers, polymer slides, rubber components.

Airsoft and paintball

O-rings, seals, valves, hop-up units, and all moving parts in gas and air-powered systems. Keeps seals elastic, reduces friction in bolt and valve assemblies, and protects against moisture ingress during play and storage.

Air rifles and air pistols

Piston seals, breech seals, barrel pivot points, and all internal rubber components. Compatible with spring-piston, CO₂, and PCP systems. Maintains seal integrity and reduces piston slap.

Firearms and optics

External metal surfaces, O-ring seals on suppressor components, optic lens mounts, and any metal-on-polymer contact point. Safe for use on painted and anodized finishes without affecting surface coatings.

General use

Hinges, zippers, rubber gaskets, plastic components, and any surface requiring long-term lubrication or moisture protection. Safe for wood, metal, rubber, plastic, and painted finishes.

Learn More

For detailed application guides specific to compound bows:

• Compound Bow Care Guide — Maintenance, Lubrication & Storage — the complete reference for every component, care schedule, and storage routine
• The Complete Guide to Compound Bow Lubrication — where to apply, what to avoid, step-by-step instructions
• Compound Bow Maintenance Hub — inspection checklists, maintenance schedules, and care tips

Frequently Asked Questions

Is GNP Defend Silicone Oil safe for compound bow components?

Yes — it is safe for all materials found in modern compound bows including composite cam bodies, aluminum risers, polymer cable slides, and rubber components. It is chemically inert and will not degrade any of these materials. Apply to cam axles, cable slide rails, and limb bolt threads. Never apply directly to bowstrings or cables.

Can I use it instead of WD-40 on my compound bow?

Yes, and you should. WD-40 is a petroleum-based solvent that evaporates quickly, leaves a grit-attracting residue, and can degrade rubber and composite materials in modern compound bows. GNP Defend Silicone Oil provides lasting lubrication, doesn't degrade bow materials, and leaves no sticky residue.

Is it safe on plastics and rubber?

Yes. Unlike petroleum-based oils, silicone oil does not swell, crack, or degrade rubber, polymer, or plastic components. It actively preserves rubber elasticity, making it ideal for O-rings, seals, polymer cable slides, and composite cam surfaces.

How often should I apply it to my compound bow?

Apply to cam axles and cable slide rails approximately every 1,500–2,000 shots under normal conditions. After hunting in rain, dust, or extreme cold, inspect and re-apply sooner. Apply to limb bolt threads whenever adjusting draw weight or if bolts feel stiff.

Can it be used on airsoft O-rings and seals?

Yes — it is specifically designed for this application. It maintains O-ring elasticity, reduces friction in valve and bolt assemblies, and protects seals during storage. Apply a small amount to O-rings during maintenance or before storage.

Does it repel moisture and prevent rust?

Yes. The silicone formula creates a hydrophobic film on treated surfaces that repels water and blocks the conditions that cause rust and oxidation. It is particularly effective as a pre-storage treatment on metal components exposed to outdoor conditions.

Is it safe for use on optics and painted finishes?

Yes. It is safe on anodized and painted metal finishes and will not affect optical coatings on scope lenses or sight glass. Apply externally to lens mounts, O-ring seals on scope tubes, and any metal-on-polymer contact points.

What is the temperature range?

GNP Defend Silicone Oil remains stable and effective from -58°F to +392°F (-50°C to +200°C). It maintains consistent viscosity in sub-zero hunting conditions and at summer range temperatures, unlike petroleum-based oils that thin in heat and thicken in cold.