Laboratory bar film applicator machine

Introduction

A laboratory bar film applicator machine is an instrument used to apply a uniform liquid coating or film onto a substrate, such as paper, film, foil, or metal panels, using a wire-wound rod or bar, and it is used in the paint, coating, ink, adhesive, and materials industries for preparing coated test samples and for testing coating properties. The applicator consists of a flat table or bed on which the substrate is placed, a drawdown bar or wire-wound rod, and a mechanism that moves the bar across the substrate at a controlled speed, and in some models, a motor for automatic operation; in operation, a quantity of the liquid coating is placed on the substrate, and the bar is drawn across the substrate, spreading the liquid into a uniform film with a thickness determined by the diameter of the wire wound on the bar or by the gap of the bar; the coated sample is then dried or cured and used for testing the properties of the coating, such as color, gloss, adhesion, thickness, and drying time, and the applicator provides reproducible films for quality control and research. Laboratory bar film applicators are used for preparing drawdowns of paints and coatings for color matching and testing, for applying inks and adhesives for testing, for preparing samples for film thickness measurement, for testing the appearance and performance of coatings, for research and development, and for quality control, and they are available in manual and motorized models, with various bar sizes, with features such as adjustable speed and uniform application. With their uniform film application, laboratory bar film applicator machines are essential for coating testing and sample preparation.

Laboratory Bar Film Applicator Machine LBFA-T2010

is a compact and motorized device designed to automate and standardize the process of applying a coating to a test panel or substrate in a reproducible way. It features a coating thickne...

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Standards

ISO 13803:2014-Paints and varnishes-Determination of haze on paint films at 20 degrees

ASTM D823-18-Standard Practices for Producing Films of Uniform Thickness of Paint, Coating, and Related Products on Test Panels

Complies with the above standards, but is not limited to them.

Features

1. Laboratory bar film applicator for preparing uniform thin films on substrates.

2. Precision wire-wound bar or film applicator for consistent coating thickness.

3. Suitable for paint, coating, adhesive, printing, material and research labs.

4. Includes applicator bed, bar/film applicator, controller, substrates and manual.

5. Supports uniform film preparation for coating testing, R&D and quality control.

FAQ

Q1: What testing scenarios is this applicator mainly applied to?

A: The laboratory bar film applicator is used in paint and coating manufacturing, adhesive development, printing ink, packaging, materials science, pharmaceuticals and research to prepare uniform, reproducible thin films on various substrates for coating testing, research and development and quality control. It supports paint and coating formulation testing (film preparation for gloss, hardness, adhesion testing), adhesive film preparation, printing ink and packaging coating development, battery electrode coating (R&D), pharmaceutical film coating, material science thin film research, and general coating quality control. The precision applicator ensures consistent film thickness and uniformity, critical for reproducible coating testing and formulation development.

Q2: What standards does the applicator comply with?

A: The laboratory bar film applicator follows relevant ISO, ASTM and GB/T standards for film application, including ASTM D823 for paint films, ISO 1524 for film thickness, and relevant coating test standards. The hardware complies with IEC 61010 laboratory safety standards. Film thickness should be verified with calibrated thickness gauges. Users should verify compliance with specific industry standards for their coating type.

Q3: What is the warranty period for the whole machine and key components?

A: The whole bar film applicator is covered by a 12-month warranty. The applicator bed, bar/film applicator, controller, drive system and housing are covered, while applicator bars, substrates and fuses are consumables or accessories. Damage from improper use, coating buildup or unauthorized repair is excluded. Extended service contracts may be available.

Q4: Is this device difficult to operate? Is professional training required?

A: Operation requires basic training in film application, coating handling and applicator maintenance. We provide operation manuals, training and application support. Proper bar selection, coating viscosity, application speed, substrate preparation, cleaning and result verification are important for consistent, uniform films.

Q5: What is the typical lead-time for order delivery?

A: Standard models require 7-30 working days. In-stock units can ship within 3-7 working days. Custom configurations or large built-to-order systems may require additional time, and we confirm the exact schedule before order confirmation.

Q6: Is regular calibration required? What is the recommended calibration cycle?

A: Application speed calibration recommended every 6-12 months. Bar condition and wire integrity checked. Film thickness verification periodically with a calibrated gauge. Bed flatness verified. Routine cleaning of applicator and bed. Full system performance check annually.

Q7: Are supporting consumables universal?

A: Applicator bars (wire-wound), substrates (glass, metal, plastic), cleaning solvents and fuses are available from coating/paint suppliers, though bar type should match the desired thickness. Long-term consumable cost depends on usage.

Q8: Can I customize parameters or supporting accessories?

A: Customization includes bed size, applicator type (wire-wound bar, film applicator, doctor blade), speed range, automation level (manual, automatic), vacuum bed (for flexible substrates), drying capability and accessories. Additional bars, substrates and accessories can be ordered separately. Custom orders extend delivery lead-time.

Q9: Does the purchase include on-site installation and commissioning service?

A: Standard delivery includes the bar film applicator and accessories with an operation manual. On-site installation, calibration and training are not included for standard orders but can be arranged at additional cost. Remote guidance is provided.

Q10: What types of coatings are compatible with this equipment?

A: The bar film applicator applies paints, coatings, adhesives, inks, slurries and other liquid or semi-liquid coating materials on glass, metal, plastic, paper and other substrates within the coating viscosity, bar type and bed size specification. Different coating types require specific bars (wire-wound for low viscosity, film applicator for higher viscosity) and application conditions. Very fast-drying coatings may require rapid application. Users should select the appropriate bar/applicator for the desired wet film thickness, ensure proper substrate preparation (clean, flat, dry), optimize coating viscosity and application speed, allow proper drying/curing conditions per coating type, verify film thickness with a calibrated gauge, follow proper safety procedures for solvent-based coatings (fume hood, PPE), and clean the applicator immediately after use to prevent coating buildup. The applicator bed should be kept clean and flat. For flexible substrates, use a vacuum bed or tape to secure the substrate. The bar should be cleaned with appropriate solvent immediately after use to prevent wire clogging. For water-based coatings, clean with water; for solvent-based, use appropriate solvent. The application speed should be consistent for reproducible results. For high-precision work, use an automatic applicator rather than manual. The coating should be applied in a dust-free environment for quality films. For testing, prepare multiple films for statistical significance and follow applicable coating test standards (ASTM, ISO) for sample preparation and conditioning.