ESI Pen Marker 3M 4298UV Adhesive Primer – Yellow 1.18 fl oz (35ml)

Description

Product Overview

The ESI Pen Marker is engineered to bring the reliability of 3M 4298UV tape primer into a compact, easy‑to‑apply format. Containing 1.18 fl oz (35 ml) of yellow‑tinted primer, the marker uses a precision‑engineered 8 mm chisel tip that lays down a uniform line of adhesive promoter. The formulation mirrors the performance of 3M 06396, offering a detectable primer that works on low surface energy (LSE) and medium surface energy (MSE) substrates. Materials include a high‑viscosity acrylic base that penetrates microscopic surface irregularities, creating a chemical bridge that enhances the bond strength of acrylic‑based tapes. The marker’s valve action prevents drips and ensures consistent flow, while the ergonomic barrel reduces hand fatigue during extended use. Dimensions of 5.5 × 0.5 × 0.5 inches and a weight of 1.44 oz make it portable for field service technicians, assembly line workers, and hobbyists alike. The product is compatible with refill bottles of 4 oz (188 ml) for extended service life, reducing waste and operational cost.

Usage

Designed for a broad range of industrial and scientific applications, the ESI Pen Marker excels in environments where rapid surface preparation is essential. It is ideal for bonding acrylic tapes to common plastics such as polypropylene (PP), polycarbonate (PC), thermoplastic olefin (TPO), and polyphenylene oxide (PPO). In automotive assembly, the marker can be used to prime interior panels before applying protective films, ensuring a lasting seal that resists delamination under temperature fluctuations. In electronics manufacturing, technicians apply the primer to circuit board housings to improve the adhesion of conformal coatings and shielding tapes. The marker also serves the DIY market, helping hobbyists achieve professional‑grade results when attaching decals to model kits or sealing seams on outdoor gear. Its quick‑dry formula allows for immediate handling of the taped surface, reducing downtime in production lines. The chisel tip’s 8 mm width provides enough coverage for large panels while still allowing precise application in tight corners, making it versatile for both large‑scale and detailed work.

Why Choose Us

Choosing the ESI Pen Marker means selecting a product backed by the reputation of both ESI and 3M. The marker’s formulation is tested to meet stringent industry standards for adhesion promotion, delivering consistent performance across a spectrum of substrates. Quality assurance processes include batch‑level testing for viscosity, primer detectability, and drying time, ensuring that every unit meets the same high threshold. The refill system is designed for sustainability; a single refill bottle can service up to 30 markers, dramatically lowering the total cost of ownership. Customer support includes technical assistance from ESI’s application engineers, who can advise on optimal primer usage for specific materials and environmental conditions. Additionally, the product carries a 12‑month warranty against manufacturing defects, reflecting confidence in its durability and reliability. For businesses that require traceability, the marker’s batch numbers and ASIN identifiers facilitate inventory management and compliance reporting.

Key Features

• Convenient pen format delivers precise 8 mm chisel lines, eliminating the need for spray equipment.
• Contains 3M 4298UV primer that boosts adhesion on low and medium energy plastics, extending tape life.
• Yellow‑tinted formulation provides visual coverage, ensuring complete surface coverage before tape application.
• Refillable design compatible with 4 oz (188 ml) bottles reduces waste and lowers long‑term costs.
• Supported by ESI technical service team for application guidance and post‑sale assistance.

FAQ

What types of plastics can I use this primer on?

The marker works effectively on a range of low and medium surface energy plastics, including polypropylene (PP), polycarbonate (PC), thermoplastic olefin (TPO), polyphenylene oxide (PPO), and blends such as PC + ABS. It also adheres well to acrylic‑based substrates and metal surfaces when properly cleaned.

How long does the primer take to dry?

Drying time is typically 30 seconds to 1 minute under normal indoor conditions (20‑25 °C, 40‑60 % relative humidity). Faster drying can be achieved with increased airflow or mild heating, but excessive heat may affect the primer’s performance.

Can I use the marker for large surface areas?

Yes. The 8 mm chisel tip provides a broad line that covers larger areas efficiently. For very large panels, multiple overlapping strokes ensure uniform coverage. The marker’s valve action prevents over‑application, allowing you to control the amount of primer deposited.

Is the primer compatible with all 3M acrylic tapes?

The 3M 4298UV primer is formulated to work with the full range of 3M acrylic‑based tapes, including high‑performance film and cloth tapes. It enhances the bond strength of these tapes on challenging substrates, delivering a more durable seal.

How do I refill the marker once the ink is depleted?

To refill, remove the cap and insert the refill bottle’s nozzle into the marker’s refill port. Press the valve gently until the primer begins to flow, then replace the cap. Ensure the marker is upright during refilling to avoid air bubbles.