Bonded Leather Board
Bonded Leather Board is reconstituted leather fiber bonded with latex into board and sheet form, giving uniform thickness and consistent density (0.7 g/cm³ in the standard STD-070 grade) for stamping and die-cutting.
Reference datasheet — Bonded Leather Board is not in the instant-quote catalog. Upload your part and an engineer will quote it in this grade or suggest the closest stocked equivalent.
Values for the STD-070 condition
Bonded Leather Board tempers and conditions
Bonded Leather Board is supplied in 4 conditions, soft to hard. STD-070 is the default FabDigit quotes; the values on this page are for it.
Compare all 4 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Low-density flexible leather board, ~0.50 g/cm³ | Pick when softness, drape and cushioning matter more than stiffness (linings, soft insoles, padding). | 5 | 22 | 0.08 W/m·K | ||
STD-070Default Standard latex-bonded leather board, ~0.70 g/cm³ | General-purpose insole/lining board: best balance of stiffness, punchability and cost. | 8 | 15 | 0.1 W/m·K | ||
Polyurethane/resin-bonded water-resistant leather board | Pick when the part sees sweat, damp or wash cycles — PU binder keeps far more wet strength than latex grades. | 12 | 14 | — | ||
High-density compressed leather board, ~0.95 g/cm³ | Pick for structural shank/heel stiffeners, case frames and book board where rigidity and edge quality dominate. | 15 | 9 | 0.14 W/m·K |
What is Bonded Leather Board?
Bonded Leather Board is reconstituted leather fiber bonded with latex into board and sheet form, giving uniform thickness and consistent density (0.7 g/cm³ in the standard STD-070 grade) for stamping and die-cutting. Engineers use it where a natural leather feel and clean die-cut edges are needed in high volume; it is stocked as flat sheet and board in low-, standard- and high-density variants (LD-050, STD-070, HD-095) and a PU water-resistant version. Mechanical capability is modest — about 8 MPa tensile, 15 % elongation, 0.45 GPa modulus — and service is limited to roughly 90 °C with low resistance to solvents and moisture (corrosion resistance score 35). Where wet or chemical exposure dominates, a synthetic-blend felt or elastomer sheet is the closer choice. Bonded Leather Board has a density of 0.7 g/cm³ (0.0253 lb/in³), heavier than 53% of natural material grades. Bonded Leather Board has a tensile strength of 8 MPa (1.16 ksi), weaker than 78% of natural material grades. Elongation at break is 15% and the elastic modulus is 0.45 GPa (0.0653 Msi).
What is Bonded Leather Board used for?
- shoe insoles
- gaskets
- washers
- packaging inserts
Advantages
- Ductile — tolerates forming and impact — 15%, better than 86% of natural material grades
Limitations
- Hard to polish — 20/100, worse than 85% of natural material grades
- High embodied carbon — 3 kg CO₂/kg, worse than 85% of natural material grades
- Poor heat conductor — 0.1 W/m·K (0.0578 BTU/hr·ft·°F), worse than 84% of natural material grades
- Low stiffness — 0.45 GPa (0.0653 Msi), worse than 81% of natural material grades
Bonded Leather Board properties
Typical room-temperature values for Bonded Leather Board-STD-070; bars are the position among natural material grades.
Physical2
Bonded Leather Board has a density of 0.7 g/cm³ (0.0253 lb/in³), heavier than 53% of natural material grades.
Mechanical7
Bonded Leather Board has a tensile strength of 8 MPa (1.16 ksi), weaker than 78% of natural material grades. Elongation at break is 15% and the elastic modulus is 0.45 GPa (0.0653 Msi).
Thermal4
Bonded Leather Board is rated for continuous service to 90°C (194 °F). It conducts heat at 0.1 W/m·K (0.0578 BTU/hr·ft·°F), worse than 84% of natural material grades.
Electrical1
Bonded Leather Board has an electrical resistivity of 1×10⁸ Ω·m.
Chemical & Environmental1
Corrosion resistance is fair (35/100), worse than 66% of natural material grades.
Sustainability4
Producing a kilogram of Bonded Leather Board takes about 35 MJ of energy and emits 3 kg of CO₂ — more than 85% of natural material grades. Typical recycled content is 80%.
Manufacturability2
Bonded Leather Board's machinability is excellent (85/100, better than 63% of natural material grades).
Common Calculations3
Values are nominal handbook figures for design screening. Certified mill or lot data ships with every FabDigit order on request.
Working with Bonded Leather Board
Is Bonded Leather Board easy to machine?
Die-cut, clicker-press, skive or laser/CNC-knife cut cleanly; carbide or hardened steel blades last longer because chrome-tanned fiber and mineral filler are abrasive, and laser cutting produces burnt-leather odor.
Can Bonded Leather Board be welded?
Not weldable — join by contact/latex/PU adhesive, stitching, riveting or heat-set edge binding.
Can Bonded Leather Board be formed, bent or molded?
Dampen or steam and press-form in a heated mold (roughly 60–90 °C) to hold three-dimensional shapes; dry fully before assembly to avoid springback and shrinkage.
Bonded Leather Board chemical composition (wt %)
Limits by weight percent from the governing specification, written the way the spec states them — a single maximum for impurities, a range for alloying elements, and the base element as balance. Nominal is the typical mid-range value.
| Element | Spec limit (wt %) | Nominal |
|---|---|---|
| leather fiber (collagen, chrome/veg tannrecovered tannery splits, shavings and buffing dust | 60 – 90 | 78 |
| natural latex / SBR binderPU or acrylic resin in water-resistant grades | 8 – 25 | 15 |
| mineral filler (kaolin, CaCO3, talc)density/stiffness control | 0 – 12 | 4 |
| fatliquor, plasticizer, dye, biocide | 0.5 – 5 | 2 |
| moisture (equilibrium, 20 °C/65 % RH)as-supplied conditioned board | 6 – 14 | 10 |
What surface finishes work on Bonded Leather Board?
Accepts edge burnishing, embossing, water-based dye or pigment coating, PU top-coat and flocking; seal edges against moisture uptake, and never use solvent or acid strippers that attack the binder.
Equivalent designations
Standards and trade names that resolve to Bonded Leather Board in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- Also called
- Leather Board
How much does Bonded Leather Board cost?
Bonded Leather Board is a standard-cost natural material ($$), cheaper than about 71% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
Bonded Leather Board — frequently asked
What is Bonded Leather Board used for?
Bonded Leather Board is typically used for shoe insoles, gaskets, washers and packaging inserts. In short: uniform die-cutting stock; low-cost leather substitute; consistent board density.
What is the tensile strength of Bonded Leather Board?
Bonded Leather Board has a typical tensile strength of 8 MPa (1.16 ksi) — weaker than 78% of natural material grades. Strength varies by condition: see the 4 listed tempers.
Is Bonded Leather Board easy to machine?
Yes — machinability is rated excellent (85/100, better than 63% of natural material grades). Die-cut, clicker-press, skive or laser/CNC-knife cut cleanly; carbide or hardened steel blades last longer because chrome-tanned fiber and mineral filler are abrasive, and laser cutting produces burnt-leather odor.
Can Bonded Leather Board be welded?
Not weldable — join by contact/latex/PU adhesive, stitching, riveting or heat-set edge binding.
What surface finishes work on Bonded Leather Board?
Accepts edge burnishing, embossing, water-based dye or pigment coating, PU top-coat and flocking; seal edges against moisture uptake, and never use solvent or acid strippers that attack the binder.
Can Bonded Leather Board be formed, bent or molded?
Dampen or steam and press-form in a heated mold (roughly 60–90 °C) to hold three-dimensional shapes; dry fully before assembly to avoid springback and shrinkage.
What is the maximum service temperature of Bonded Leather Board?
Bonded Leather Board is rated for continuous use to about 90°C (194 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
How much does Bonded Leather Board cost?
Bonded Leather Board is a standard-cost natural material ($$), cheaper than about 71% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
Sources
- ASTM D6182 / D2209-type leather and leather-board tensile test practice — ASTM International (2021)
- Cellulose/leather fiberboard insole board technical sheets — Texon International and Chinese leatherboard mills (2023)
- Leather Technologists Pocket Book — reconstituted leather fibreboard — Society of Leather Technologists and Chemists (1999)
Property data is compiled from published supplier and standards handbooks and normalised for comparison; hardness values on non-Brinell scales are converted approximately for charting only. Manufacturability limits are FabDigit quote-engine defaults and may be relaxed by engineering review. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.