Sika Advanced Resins US SIKABIRESIN AP017 (1-USQT-CAN)

Additional Product Information

Overview

SikaBiresin AP017 is a styrene-free, very fast-setting polyester filler paste designed for high-performance repair, fairing, and finishing operations in aviation maintenance and industrial composite manufacturing. Manufactured by Sika Corporation, this industrial filler is widely trusted in aircraft MRO environments for rapid structural surface restoration and high-temperature service reliability. Teams rely on this product for its strong adhesion, smooth finishing characteristics, and ability to support both cosmetic and semi-structural repair workflows.

Key Technical Specs for SikaBiresin AP017

• Type: Styrene-free polyester-based filler paste
• Color: Resin – white, gray, or black; Hardener – white, black, or red; Mixed – variable composite tone
• Viscosity / Consistency: Thixotropic, smooth, creamy paste that minimizes air entrapment
• Cure / Working Time: Pot life 5–7 minutes at 77°F (25°C); setup time 10–20 minutes; full cure approximately 7 days at 77°F (25°C)
• Service Temperature: Up to 400°F (204°C)
• Typical Uses: Composite surface repair, fairing, filling, mold correction, potting, and structural surface finishing

Approvals & Specifications

• Manufactured under quality systems associated with Sika Corporation industrial composite repair products
• Suitable for aerospace composite repair performance requirements where applicable
• Users should verify compliance with specific airline, OEM, or regulatory maintenance standards prior to operational deployment

Typical Aircraft MRO / AOG Applications

• Aircraft interior composite panel filling and cosmetic restoration
• FRP panel cloth imprint repair and surface leveling
• Honeycomb structure edge filling and reinforcement
• Gel-coat damage repair on production molds
• SMC molded component porosity correction
• Vacuum-formed mold modification and refurbishment
• Potting of bushings, drill fixtures, and composite inserts
• Above- and below-waterline marine composite repair where permitted

Compatibility & Safety Notes

• Compatible with fiberglass, SMC, BMC, RIM, FRP, epoxy composites, graphite, Kevlar reinforced materials, aluminum, steel, cast iron, and urethane foam substrates
• Ensure surfaces are cleaned, sanded or roughened, and completely dried prior to application
• Mix resin and hardener at 100:2 ratio by weight
• Use adequate ventilation and wear protective gloves, safety glasses, and protective clothing during handling
• Follow current Safety Data Sheet instructions before use

Packaging & Procurement

• Packaging formats are available upon request through authorized distributors or Sika technical sales channels
• Recommended storage temperature: 65–77°F (15–25°C) / 15–25°C
• Keep containers tightly closed to prevent filler separation and moisture contamination
• Re-homogenize resin paste prior to use if settling occurs during storage

Why SikaBiresin AP017 is Chosen for AOG / MRO

• Fast repair cycle enables aircraft return-to-service efficiency
• Excellent adhesion minimizes risk of repair delamination
• High thermal resistance supports demanding operational environments
• Smooth machinability reduces secondary finishing effort
• Versatile substrate bonding supports multi-material maintenance work

Practical Suggestions for Your Team (AOG Mindset)

• Maintain small emergency stock quantities for critical repair readiness
• Prepare clean mixing surfaces and disposable tools before activation
• Train maintenance personnel on rapid application and air-bubble control techniques
• Apply immediately after mixing due to short pot life characteristics
• Allow tack-free cure before sanding, coating, or machining

Manufacture / Aviation Spec Codes

• Manufacturer: Sika Corporation
• Product ID: SikaBiresin AP017
• Internal Product Series: AP017 / P-17 Composite Filler System

Alternative Names & Descriptions

• P-17 polyester filler paste
• Sika Biresin AP017 aerospace repair filler
• Styrene-free high-temperature composite filler AP017
• Aviation MRO fast-setting polyester fairing compound
• Industrial composite repair putty AP017