An almost unbelievable fabric — a grid of unwoven Dyneema (ultra-high-molecular-weight polyethylene) yarns laminated between two thin polyester films, in two perpendicular layers. Strong as steel by weight, completely waterproof at the sheet level, and so light a square yard weighs less than a tea bag. Originated in racing-yacht sailcloth (where it was called Cuben Fiber after its developer, Cubic Tech, before the Dyneema brand absorbed it), now the canonical fabric of ultralight backpacking — Hyperlite Mountain Gear, Zpacks, Mountain Laurel Designs all build their tents and packs from it. Does not stretch, does not breathe, and does not behave like cloth — it behaves like a structural composite that you happen to be able to sew.
Non-woven laminate composite. UHMWPE filaments (Dyneema fiber, originally developed by DSM, now Avient) laid in a grid of typically 0.5–1.0 mm yarn spacing, sandwiched between two films of biaxially-oriented polyethylene terephthalate (BoPET) or sometimes polyester film, hot-pressed with adhesive. Standard weights 0.51 oz/yd² (CT2E.08, 18 g/m²), 0.74 oz/yd² (CT2K.08, 25 g/m²), 1.43 oz/yd² (CT2E.18, 48 g/m²), up to 2.92 oz/yd² (CT5K.18, 99 g/m²) for pack-grade. Tensile strength 700–1500 N/in (the Dyneema yarns carry the load almost entirely). Hydrostatic head >5000 mm (waterproof). Tear strength is paradoxical — high resistance to start a tear (the Dyneema must rupture), low resistance to propagate one (no weave to redirect force; the tear runs along yarn lines). Cannot be hot-cut. Sewing leaves needle holes that compromise waterproofness — DCF is typically heat-bonded with seam tape rather than sewn, and where it must be sewn the seams are reinforced with adhesive seam tape. UV-stable, hydrolysis-stable, dimensionally extremely stable.
Principled BSDF defaults derived from the sphere fibrous finish. Reasonable seed for Blender, Substance, Keyshot, Rhino — tune per material. Or grab the whole library at once: ForMaterials library →
# finish: fibrous albedo #e5e8eb metallic 0.00 roughness 0.70 ior 1.45 transmission 0.00 clearcoat 0.00 sheen 0.70 anisotropic 0.50
{
"albedo": "#e5e8eb",
"metallic": 0.0,
"roughness": 0.7,
"ior": 1.45,
"transmission": 0.0,
"clearcoat": 0.0,
"sheen": 0.7,
"anisotropic": 0.5
}
# Blender 4.x — Principled BSDF
# Dyneema® Composite Fabric (DCF, formerly Cuben Fiber) · finish: fibrous
import bpy
mat = bpy.data.materials.new(name="mat_dyneema_composite_fabric")
mat.use_nodes = True
bsdf = mat.node_tree.nodes["Principled BSDF"]
bsdf.inputs["Base Color"].default_value = (0.7835, 0.807, 0.8308, 1.0)
bsdf.inputs["Metallic"].default_value = 0.000
bsdf.inputs["Roughness"].default_value = 0.700
bsdf.inputs["IOR"].default_value = 1.450
bsdf.inputs["Transmission Weight"].default_value = 0.000
bsdf.inputs["Coat Weight"].default_value = 0.000
bsdf.inputs["Sheen Weight"].default_value = 0.700
bsdf.inputs["Anisotropic"].default_value = 0.500
# KeyShot 11+ — lux Python API, Generic material
# Dyneema® Composite Fabric (DCF, formerly Cuben Fiber) · finish: fibrous
# Run from Window → Scripting Console
import lux
mat = lux.createMaterial(name="mat_dyneema_composite_fabric", materialType="Generic")
mat.setProperty("diffuse", (229, 232, 235)) # 8-bit sRGB
mat.setProperty("metallic", 0.000)
mat.setProperty("roughness", 0.700)
mat.setProperty("indexOfRefraction", 1.450)
mat.setProperty("transparency", 0.000)
mat.setProperty("coatingWeight", 0.000)
{
"_format": "Substance Designer / Painter \u2014 pbrMetalRough constants",
"_about": "Dyneema\u00ae Composite Fabric (DCF, formerly Cuben Fiber) \u00b7 finish: fibrous",
"baseColor": {
"r": 0.7835,
"g": 0.807,
"b": 0.8308
},
"metallic": 0.0,
"roughness": 0.7,
"ior": 1.45,
"opacity": 1.0,
"anisotropyLevel": 0.5,
"_notes": "Channels listed are the standard Substance pbrMetalRough output. Drop into a Uniform Color node per channel, or as the constant input on a layered stack."
}{
"asset": {
"version": "2.0",
"generator": "ForMatter"
},
"materials": [
{
"name": "mat_dyneema_composite_fabric",
"pbrMetallicRoughness": {
"baseColorFactor": [
0.7835,
0.807,
0.8308,
1.0
],
"metallicFactor": 0.0,
"roughnessFactor": 0.7
},
"extensions": {
"KHR_materials_ior": {
"ior": 1.45
},
"KHR_materials_sheen": {
"sheenColorFactor": [
1.0,
1.0,
1.0
],
"sheenRoughnessFactor": 0.7
}
}
}
]
}# USD Preview Surface — UsdShade.MaterialLook prim attributes
# Dyneema® Composite Fabric (DCF, formerly Cuben Fiber) · finish: fibrous
def Material "mat_dyneema_composite_fabric" {
token outputs:surface.connect = </mat_dyneema_composite_fabric/PreviewSurface.outputs:surface>
def Shader "PreviewSurface" {
uniform token info:id = "UsdPreviewSurface"
color3f inputs:diffuseColor = (0.7835, 0.807, 0.8308)
float inputs:metallic = 0.000
float inputs:roughness = 0.700
float inputs:ior = 1.450
float inputs:opacity = 1.000
float inputs:clearcoat = 0.000
token outputs:surface
}
}
DSM Dyneema / Avient Dyneema Composite Fabrics technical literature.
House vocabulary — terms ForMatter uses with intent.
Materials and processes for people who design and make things.
A local-first library of materials, processes, applications, and finishes — equal weight, citable everywhere, with cost-over-volume curves, trade-off profiles, equipment-tier filters, and second-life paths layered onto the data so a student can move from "what is this" toward "what's actually buildable here, now, by me." Part of the renato.design ecosystem — sibling of Plenum, Specimen, Ingenue, gesture, graf, and the Renato Rhino plug-ins. Form and matter, inseparable.
Half of teaching materials is teaching how the material is made into the thing. The standard subscription library was always light on that half. The wedge here isn't better samples or a prettier interface — it's treating Process as a peer entity, not a footnote.
Conway's Material World on raw materials, Lefteri's Making It on processes, Forty's Concrete and Culture, Sparke's Design in Context, Bürdek's Design: History, Theory and Practice of Product Design, Schröpfer's Material Design on materials in architecture, Winchester's The Perfectionists on tolerance, Minshall's Your Life Is Manufactured on the global supply chain, von Busch's Making Trouble on material activism, Were's How Materials Matter, Hegger / Drexler / Zeumer's Basics Materials, Untracht and McCreight on metalsmithing, USDA Forest Products Lab on woods, GIA on gemstones, Schott / CoorsTek / Toray / Owens Corning datasheets, MakeItFrom for verifiable property numbers, ASM Handbook, ISO standards. Museum holdings draw from the Met, MAD, V&A, Smithsonian American Art Museum, Newark Museum of Art, British Museum, Heard Museum, Smithsonian NMAI, Eiteljorg Museum, Philadelphia Museum of Art, Cranbrook Art Museum, and Grand Rapids Art Museum — collection-record permalinks only, designer overview pages and exhibition listings excluded. Voice blocks now ride on every entry kind — material, process, application, and finish — and include Ruskin on iron, Anni Albers on twining, Greg Lynn on the shred-and-teeth NURBS lineage, Pugin on the metal that won't be hammered, Barthes / Yanagi / Benjamin channeled within their philosophy; Sparke, Bürdek, Forty, Conway, Schröpfer, Minshall, von Busch, Lefteri, Pat Pruitt, Mary Lee Hu, Tom Joyce, Albert Paley, and the rest of the contemporary makers quoted verbatim with citation. All cited.
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