OP-272 | Nano-Scale Adhesion-Promoting Surface Treatment
Harmonization Code : 3824.99.96.99 | Prepared binders for foundry moulds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included : Other : Other: Other

Main features
- Improved adhesion strength of paints/coatings on metal surfaces
- No outgassing
- No stress build-up on the substrates
Product Description
Aculon OP-272 is a nano-scale, isopropanol-based surface treatment engineered to significantly enhance adhesion to metal substrates for coatings that cross-link via hydroxyl functional groups, including urethane, melamine-formaldehyde, and phenolic-epoxy systems. Designed for use in demanding electronics, industrial, and coating applications, OP-272 delivers a thin (2–4 nm), invisible, and stable monolayer that strengthens interfacial bonding without altering substrate appearance or introducing mechanical stress.
It integrates easily into existing production lines using conventional wet application methods such as dipping, spraying, or wiping, and provides exceptional chemical resistance and coating compatibility.
Applications:
- Enhance epoxy adhesion on metal lead-frames in electronics
- Improve bonding of urethane and phenolic-based over-mold compounds
- Prevent delamination in finished coatings or laminates
- Boost adhesion of melamine-formaldehyde coatings for heat- and chemical-resistant applications
Packaging
TDS, SDS & Technical Documents
- Aculon OP-272 TDS
- Aculon OP-272 SDS
Technical Specifications
General Properties
Thermal Properties
Electrical Properties
Physical Properties
Additional Information
Surface Preparation/ Cleaning:
Ensure that the surface is free of any grease, fingerprints or dirt (i.e., water break free). This can be accomplished by first degreasing the surface with solvents or by rinsing with soap and water. The next step is to remove monolayer-scale contaminants. This is typically performed by using a cleaner specifically designed for the metal you are working with. Contact Aculon if you are unsure what cleaner to use and we will recommend one best suited for your application. The substrate should be water break - free before continuing to coating steps.
Treatment Application:
Spray: Spray the solution onto the substrate using doubl e passes. Post-application curing is recommended for best performance. Spray Equipment Suggestions: HVLP (Binks Mach 1), HVLP
(Devilbiss JGHV), Air Atomizatation (Devilbiss MBC gun), and Airless (Graco Model 225-292 President Pump Series A)
Dip: – Immerse the substrate in the solution for five minutes. If a shorter dip time is necessary, then a post-cure is recommended for optimal performance (sonication while dipping can boost performance in some cases).
Dip Coating with Sonication: Ensure the substrate is clean. Completely submerge the substrate in the solution and sonicate for five minutes. Remove substrate from the solution and allow to air dry , preferably in a clean area.
Drying/ Curing: If curing is necessary (short dip times or spray-application), the treated substrates are best cured at 120C peak metal temperature for approximately 30 seconds. For silicon and titanium
oxides, lengthening the cure time to 5 minutes is recommended.
*Note: If OP-272 is being used to adhere a high viscosity or low-reactive resin system, especially if such coating is not cured after application, then it is suggested to do a post cure rinsing step (or post-treatment rinse if curing was
not performed) for best performance. In certain cases it is also possible to directly blend the active materials into a coating; contact an Aculon representative if this approach is of interest to you.
Safety, Handling, Storage, Shelf Life:
Store in a cool (~25C) and dry area, and keep away from direct sun light. See this product’s MSDS for proper handling and fire hazard data. When stored properly, product has a 2 year shelf life from the date it is opened.
Recently viewed products

Thermelt 858 | Low Pressure Molding (LPM)
- Enhanced UV resistance versus standard PA
- High hardness and cohesion
- Flammability UL94:V0

FM-DA11 | Reactive PDMS - Monoterminal Hydroxy (Diol)
- Mono terminal
- 1,000 g/mol | 60 mPas
- Hydroxy (Diol) functional group

HumiSeal AR10 Low Outgas Acrylic Conformal Coating
- Low Outgassing Conformal Coating
- Fluorescent for Inspection
- Ideal for Aerospace Applications

KESTER 2235 Soldering Flux
- Minimizes icicling and bridging
- Compatible with most masks and laminates
- High activity

3M™ Tape Primer 94
- Enhances adhesion of 3M tapes
- Ideal for low surface energy materials
- Improves bond strength, consistency, and long-term durability

LOCTITE ABLESTIK ICP 4015
- One component
- High flexibility
- Low temperature cure

OPTOLINQ TMC-3282 | Transparent Mold Compound
- Exceptional moldability with long spiral flow
- Excellent performance at high temperature and high humidity conditions
- Excellent adhesion and low stress

ABchimie 9111 UV Glue
- One-component
- Fast UV Curing
- Adhesion to many substrates

3M™ Adhesion Promoter 111
- Higher bond strength.
- Isopropyl alcohol based solvent system
- Non-offensive odor