IRWINStandard Marking Chalks

IRWIN Marking Chalk: High-Visibility Orange, Semi-Permanent, 8 oz Size

The IRWIN Marking Chalk is a standard marking chalk in high-visibility orange, supplied in an 8 oz size with a flip-top cap. This semi-permanent chalk is designed for marking applications where visibility is critical.

SKU 3G-OTH-401604

Also listed as: 64905 ZR · 64905-ZR

Brand

IRWIN

Item

Marking Chalk: High-Visibility Orange, Semi-Permanent, 8 oz Size

Local availability & support — Singapore

Local office: 20 Woodlands Link #09-05, Singapore 738733
Phone: +65 8878 8355
Delivery: Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment: Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to: Singapore

Technical Specifications

IRWIN

Manufacturer Part Number

64905ZR 

Type

Semi-Permanent, Flip-Top Cap 

Size

8 oz 

Technical Documents

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IRWIN Products

3G Electric (S) Pte. Ltd. — Singapore

Product Description

Frequently Asked Questions

What is IRWIN Marking Chalk used for?

IRWIN Marking Chalk is used for marking surfaces in construction, carpentry, and industrial settings where high visibility is critical. The semi-permanent orange chalk leaves clear, long-lasting lines on rough or dark materials, helping professionals align cuts, layouts, and reference points accurately.

What are the specifications of IRWIN Marking Chalk 64905ZR?

The IRWIN Marking Chalk (MPN 64905ZR) is a high-visibility orange, semi-permanent chalk in an 8 oz container with a flip-top cap. It is designed for marking applications where visibility is critical. The chalk is supplied by 3G Electric, a global industrial equipment distributor.

Where to buy IRWIN Marking Chalk in worldwide?

You can order IRWIN Marking Chalk (64905ZR) worldwide through 3G Electric. As a global industrial equipment distributor established in 1990, 3G Electric handles full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.

How to use IRWIN Marking Chalk with a flip-top cap?

To use IRWIN Marking Chalk, shake the 8 oz container, open the flip-top cap, and pour chalk into a chalk line reel or apply directly. The semi-permanent orange formula provides high visibility on dark or rough surfaces. Always test on a small area first to ensure compatibility with the material.

Used in

Common applications for IRWIN

Wood framing and decking — IRWIN ship auger bits (e.g., SKU 4AAT6) for deep drilling in timber

Electrical and plumbing installations — IRWIN hybrid utility bits (e.g., SKU 5ELR0) for drilling through wood and thin metal

Automotive assembly and repair — IRWIN power socket adapters (e.g., SKU 55EW60) for driving sockets with impact tools

General construction fastening — IRWIN impact Torx bits (e.g., SKU 787P77) for driving screws in metal and wood

Cabinet making and furniture assembly — IRWIN power bits (e.g., SKU 55EW15) for Phillips head screws in particle board and hardwood

Maintenance and repair tasks — IRWIN insert bits (e.g., SKU 55EW26) for quick bit changes in cordless screwdrivers

IRWIN Products

3G Electric supplies IRWIN standard marking chalks. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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