Painting

Finish must also be compatible with the selected base material; allow for preparation, masking and dimensional changes.

Use a copolymer grade when low-temperature impact is important. Treat surfaces before bonding or painting and allow for stress-related warping in machined parts. Printing, screen printing and painting after flame or corona treatment. Ultrasonic and hot-plate welding are joining options. Electroplating is generally unsuitable.

Allow for approximately 1.5–3% molding shrinkage where applicable. Consider environmental stress cracking and confirm the UV package. HDPE, LDPE and UHMWPE have different performance and processing requirements. Printing and painting need flame or corona treatment. Welding is possible; electroplating is generally unsuitable.

Use impact-modified grades for impact exposure. Confirm cleaning and bonding compatibility; avoid acetone and unsuitable alcohol cleaners. Laser cutting can provide a bright edge, while CNC edges may need finishing. Flame or mechanical polishing, painting, printing, UV printing and vacuum metallization. Compatible solvent or UV-curing adhesives can be used.

Control processing heat carefully. Select an impact-modified grade for cold use. Food or drinking-water contact requires the appropriate grade documentation; additives and stabilizers also matter. Painting, printing and screen printing; solvent bonding and thermal welding. Electroplating is generally unsuitable.

Use equipment suited to the grade processing window, approximately 360–400°C in the supplied guidance. Control crystallinity through molding and annealing. Reinforced grades are direction-dependent. Laser marking; limited coating options and plasma pretreatment for bonding. Electroplating is generally unsuitable.

Use reinforced grades where unfilled PBT cannot meet structural stiffness or heat requirements. Select hydrolysis resistance for hot/wet exposure and specify the required flame rating. Laser marking, painting, printing and qualified bonding. Suitable grades may be laser-welded.

Account for gate position, flow direction and dry/conditioned dimensions. Do not apply the 33% glass-filled values to unfilled PPA. Laser marking; limited coating options and laser welding with compatible grades.

Consider HIPS or ABS for loaded or impact-exposed parts. Avoid prolonged outdoor exposure, incompatible solvents and heat beyond the selected grade limit. Printing, painting, screen printing, vacuum metallization and compatible adhesive or solvent bonding.

Qualify adhesives and cleaning agents to prevent stress cracking. Confirm drying, outdoor stabilization and the applicable ASTM or ISO test method. Painting, printing and compatible bonding. Electroplating is generally unsuitable.

Polyether grades favor hydrolysis resistance; polyester grades can favor oil and wear performance. Confirm the environment and keep hard Shore D values separate from soft Shore A materials. Printing or painting with dedicated primers, compatible bonding, and qualified high-frequency or ultrasonic welding.

Allow for creep and thermal expansion in fits. Confirm load, temperature and surface-treatment requirements rather than relying on nominal room-temperature dimensions. Printing and painting require surface treatment such as flame or corona activation. Electroplating is generally unsuitable.

Thermoset phenolic cannot be remelted or thermoformed. Specify reinforcement and laminate direction, avoid impact-sensitive use, and provide dust extraction when machining. Machined smooth surfaces; limited painting and printing. Electroplating is generally unsuitable.

Apply rust protection promptly. Welding may need preheat and an appropriate procedure. Hot-rolled, cold-drawn, normalized and quenched-and-tempered conditions differ; use alloy steel such as 4140 where greater hardenability is required. Other carbon steels include 1018/1020, 1215/12L14 and A36. Black oxide, zinc/nickel/chrome plating, phosphate or zinc-flake coatings, powder coating, painting and protective oil.

Confirm heat-treatment hardness before quoting. Welding may need preheat in the supplied 170–350°C reference range and suitable postheat, depending on the procedure. Alternatives include 4340, carburizing grade 8620 and 4130. Quenching/tempering and nitriding; nickel/chrome plating, black oxide, phosphate, paint and zinc-flake corrosion protection.

Select preparation and coating system for the alloy, surface condition and functional requirements.

Electroplating or chrome plating requires plating-grade ABS. Flame-retardant grades may limit light colors and plating adhesion. Confirm bright-color consistency. Machined and printed parts need a separate texturing process rather than mold texturing. Painting, screen printing, pad printing, laser engraving, plating, vacuum metallization, hot stamping, water-transfer printing and polishing. Mold texturing applies to injection-molded parts.

Choose cleaning, paint and adhesive systems that avoid stress cracking. Dry before molding to prevent hydrolysis; select UV protection outdoors and hard coating when scratch resistance matters. Painting, hard coating, printing, vacuum metallization and laser engraving. Use compatible adhesive systems.

Adhesion depends on polymer grade, surface preparation and coating or ink chemistry. Confirm with the selected formulation.