3M 051141-55540 StiKit 236U Gold 5 Inch P80 Grit Disc – 100 Discs/Roll

Description

3M StiKit 236U Gold P80 5-inch Disc Roll – 100 Discs for Aerospace Material Removal

3M StiKit 236U Gold P80 Grit 5-inch Disc Roll provides 100 PSA-backed coated abrasive discs for high-efficiency material removal and surface preparation in aerospace sanding operations. The P80 medium grit provides aggressive material removal — leveling surfaces, removing existing coatings, shaping and contouring — in the initial stages of aerospace surface preparation sequences that proceed through progressively finer grits. The 5-inch disc diameter matches 5-inch orbital and random orbital sander tools used alongside the common 6-inch format for different work area sizes and tool preferences.

The gold anti-loading treatment distinguishes 3M’s Gold series — the zinc stearate or equivalent anti-loading compound applied to the abrasive surface resists the adhesion of sanded material to the disc, maintaining open abrasive valleys for effective cutting throughout the disc’s useful life. Anti-loading treatment is particularly effective at P80 grit when sanding aluminum alloys (aerospace’s primary structural material) which generate soft aluminum oxide swarf that readily loads conventional aluminum oxide abrasives without anti-loading protection.

The 100-disc StiKit roll format provides maximum production efficiency for high-volume aerospace sanding operations — the continuous roll dispenser format allows one-handed disc peel-and-apply changes, minimizing the time spent on disc changes during intensive material removal operations on aircraft fuselage and component surfaces.

Technical Information

3M StiKit 236U Gold uses aluminum oxide mineral on a C-weight paper backing with PSA adhesive on the reverse and gold anti-loading compound on the abrasive surface. At P80 grit, the disc provides a cut rate appropriate for material removal, leveling, and paint stripping preparation — removing significant surface material per pass to efficiently reduce surface irregularities or existing coating thickness. The anti-loading treatment maintains this high cut rate through more passes than uncoated discs before loading reduces efficiency.

P80 grit is typically one of the first grits in a multi-stage sanding sequence for aircraft surface preparation — P80 establishes the surface condition and removes bulk material, followed by P120-P180 to reduce the P80 scratch depth, then P240-P320 for surface finishing, and finally P400+ for pre-coating preparation. The choice of starting grit depends on the initial condition of the surface being prepared — heavily contaminated or damaged surfaces may require P80 start, while lightly oxidized surfaces in good condition may begin at P120 or finer.

Apply StiKit discs to a compatible 5-inch PSA backing pad on an orbital or random orbital sander. P80 grit requires moderate pressure for effective material removal — too light pressure under-engages the coarse abrasive, while too heavy pressure causes rapid disc loading and generates excess heat. Change discs promptly when material removal rate drops rather than increasing pressure to compensate.

Why Choose?

• ✅ P80 Aggressive Grit — Effective material removal and leveling
• ✅ Gold Anti-Loading — Maintains cut rate on aluminum aerospace surfaces
• ✅ StiKit Roll Format — Fast PSA disc changes for production sanding
• ✅ 5-inch Format — Matches 5-inch orbital sander tools
• ✅ 100 Discs per Roll — Maximum-volume supply for production operations

Applications

StiKit 236U Gold P80 5-inch discs are used for material removal, leveling, surface preparation, and initial sanding operations on aircraft surfaces and components in aerospace body shop and paint preparation operations.

Frequently Asked Questions

Q: What is 3M StiKit 236U Gold P80 5-inch?
A: StiKit 236U Gold P80 is a P80 grit PSA disc on a 100-disc 5-inch roll — anti-loading treatment for extended disc life on aluminum, and P80 grit for aggressive material removal in early-stage aerospace surface preparation.

Q: MPN for 3M StiKit 236U Gold P80 5-inch 100-roll?
A: MPN is 7000119531.

Q: What is the difference between the 5-inch and 6-inch P80 StiKit rolls?
A: 5-inch (MPN 7000119531) vs. 6-inch (MPN 7000119551 P80C) — the disc diameter matches the 5-inch or 6-inch sanding tool backing pad. The abrasive formulation and anti-loading treatment are equivalent.

Q: Why use P80 instead of a finer starting grit?
A: P80 provides the fastest material removal for initial leveling of surfaces with significant irregularities or existing coatings to remove. For lightly damaged surfaces in good condition, starting at P120 or finer saves sanding steps by avoiding the deeper scratch pattern that P80 creates.

Q: How many discs in a roll?
A: Each roll contains 100 StiKit 236U Gold P80 5-inch Discs.