Concrete fishing Sinker Mold Grippa 100g | SAF Concrete Series

Product detailed description

Concrete fishing Sinker Mold Grippa 100g | SAF Concrete Series is designed for repeated production of concrete fishing sinkers with an emphasis on shape accuracy and stability during use. The mold is 3D printed from PETG material and dimensioned for a concrete mix with a density of 2300 kg/m³.

Robust construction for accurate castings
The key advantage of this mold is the body design and overall rigidity. The construction is reinforced and shape-stable to help prevent unwanted flexing or deformation during normal fixing and filling. This is essential for keeping the final concrete sinker consistent in shape and dimensions.

Corner holes = flexible fixing options
The mold includes prepared corner holes / pass-through points that allow easy assembly with bolts (for example with wing nuts or star knobs). If you prefer a different workflow, the mold can also be secured with suitable clamps. The benefit is simple: with proper fixing, the mold keeps its shape and helps produce a clean, repeatable casting result.

Why mold rigidity matters in concrete casting
When making concrete fishing sinkers, the mold needs to stay stable during filling and compression. If the mold deforms while being clamped, that deformation transfers directly to the final sinker shape. This is where a robust design makes a real difference: more reliable filling, more accurate castings and better repeatability for batch production.

Recommendation before pouring the mix
Before filling the mold, we recommend applying a light release layer to the inner surfaces so the finished sinker can be removed more easily. In practice, anglers often use a thin film of vegetable oil or a light spray oil (for example WD-40 type spray). Apply only a thin layer to avoid affecting surface detail.

100g weight reference note
The stated 100g weight is based on a concrete mix with a density of 2300 kg/m³. Final weight may vary slightly depending on the exact mix recipe, water content, compaction and curing process. If you are tuning your own mix or using different fillers, we recommend checking the final weight with a test casting.

SAF Concrete Series molds are a solid choice for anglers who want full control over concrete sinker production — from mix selection to final color and surface finish. Thanks to the robust build and practical fixing system, this mold provides a reliable base for repeated workshop use.

→ For all detailed technical information, see the Parameters section below.

↓ Below the product description, you will also find related and similar products to help you choose and build a complete setup.