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The Allflex Tag Marker Pen Black is specifically designed for use with Allflex visual identification tags. Unlike regular markers, the xylene ink formula carries the ink into the plastic, creating marks that can last 4+ years in the paddock.
Why Xylene Ink?
- Xylene carries ink into the plastic, not just on the surface
- Marks last significantly longer than standard markers (4+ years vs 3-4 months)
- Black ink works best - soaks in deeper than white
- Ink may go completely through to the other side of the tag
Factors Affecting Mark Life
- UV light degrades ink over time
- Fly spray removes ink - avoid misting marked tags
- A standard Sharpie lasts only 3-4 months
- Allflex xylene pen lasts 4+ years when applied correctly
Compatible Tags
Designed for all Allflex visual tag ranges:
- LazaTag range (Mini to Super Maxi)
- A-Tag V2 range
- Feedlot tags
Also Available
For marking on dark-coloured tags, see the Tag Pen White (note: white ink does not soak in as well as black).

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"I couldn't be happier with the service and products I've received from Farm & Acre Co. I've purchased both cattle ear tags and chainsaw chains, and the quality of everything has been outstanding. Their customer service is second to none—friendly, knowledgeable, and genuinely helpful from start to finish. Pricing is extremely competitive, especially considering the quality of the products, and the turnaround time was impressively fast. My order arrived quickly and exactly as promised. It's rare these days to find a business that delivers the best service, best products, and great value all at once, but Farm & Acre Co does exactly that. In my opinion, they're one of the best farm supply businesses in Australia, and I wouldn't hesitate to recommend them to anyone in the rural or agricultural industry."

