The Pica 991/41/SB Visor Permanent Refills, 4-Pack is a refill set for the Pica Visor refillable multi-use marker. This is a paint crayon refill set designed for permanent marking on mixed jobsite surfaces. Model number 991/41/SB. If you already use a Pica Visor marker and need dependable blue marks that hold up on rough or dirty material, this is the refill pack that keeps the marker in service.

What matters here is not just the color or the piece count. These refills are built for real-world marking conditions where a standard marker quits or wipes off. According to the source data, they are suitable for most surfaces, including dry, wet, glossy, rough, and oily materials. That gives this refill set real value for contractors, installers, and tradespeople who jump from lumber to concrete to metal without wanting to switch marking tools every few minutes.

The refill material is described as permanent and low chloride, which is worth paying attention to if you work around metal surfaces and need a cleaner marking option. The marks are also positioned for outdoor use, with weather resistance and temperature resistance up to 104 degrees Fahrenheit. In practical terms, that means the refill is meant to keep leaving visible marks when the job is not happening in a clean, climate-controlled shop.

Pica lists this as part of the Innovative Line and built for the refillable Visor marker platform. That refillable design is one of the main reasons people buy into this system in the first place. Instead of tossing a marker body when the marking material is gone, you reload it and keep working. For anyone who uses a longlife industrial marker regularly, that is a more efficient setup and usually the cheaper one over time.

Surface range is one of the strongest points of this product. The source data specifically calls out stone, concrete, metal, wood, wet and dry lumber, pvc pipe, glass, wet and dry tile, wet and dry rubber, and cardboard. That broad material list makes the Pica 991/41/SB Visor Permanent Refills, 4-Pack a practical fit for punch lists, layout work, fabrication prep, rough-in work, and general site marking where one refill type needs to cover a lot of ground.

This refill pack is a good buy for tradespeople already using compatible Pica Visor markers, especially if blue is the color they need for visibility or workflow. It makes the most sense for construction, remodeling, mechanical trades, shop work, and outdoor applications where a standard office marker is the wrong tool. If you do not already own a compatible Visor marker body, this refill set is not the starting point. If you do, it is the consumable that keeps that system useful.

Pica 991/41/SB Visor Permanent Refills, 4-Pack for Guys Who Actually Use Their Marker

If you already run a Pica Visor marker, this is the smart refill to keep around because it marks on materials that usually make ordinary markers useless.

• Who it's for: Pros and serious DIY users who need one refillable marking system for lumber, concrete, metal, pipe, tile, and other mixed materials.
• Why it stands out: The broad surface range, permanent mark, and refillable Visor system make it more practical than disposable markers for regular jobsite use.
• Worth knowing: This is a refill pack, not a full marker kit, so it makes the most sense if you already own one of the listed compatible Pica Visor marker bodies.

• What color are these refills? These refills are blue.
• What type of refill is this? The source data lists it as a paint crayon refill for the Pica Visor refillable multi-use marker.
• What surfaces can it mark on? It is intended for most surfaces, including dry, wet, glossy, rough, and oily materials such as concrete, metal, wood, pvc pipe, glass, tile, rubber, and cardboard.
• Which markers are these refills made for? They are listed for use with Pica models PA990/40/SB, PA990/41/SB, PA990/44SB, and PA990/52/SB.