Fiberglass

Plastic reinforced with glass fiber strands.

Notes

Fiberglass is a composite material made by reinforcing plastic with glass fiber strands, used as a component in advanced tools and construction items like Chainsaws, Composite Bows, Fiber Reinforced Concrete, and a wide range of modern hand tools (axes, hammers, pickaxes, etc.). It is crafted through the Fiberglass recipe and is an intermediate product (tagged Ingredient, Parts, Product) that stacks to 100 per unit. Because it appears in so many late-game recipes, maintaining a steady stock of Fiberglass in the town’s stores helps ensure that players can quickly craft the modern equipment needed for efficient industry and infrastructure without supply bottlenecks.

Notes are AI-generated and may be imprecise.

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Upgrade modules (one per slot)

Basic (none)Basic Upgrade (−10% cost · −5% labor · −25% time)Advanced (none)Advanced Upgrade (−10% cost · −10% labor · −35% time)Modern (none)Modern Upgrade (−15% cost · −10% labor · −50% time)Specialty (none)Glassworking Advanced Upgrade (−5% cost · −25% time)

Glassworking level 0Skill level changes labor only.

Talents

Bright Applications (Glassworking Lv 3) Double Speed (Glassworking Lv 3) Tailored Glass (Glassworking Lv 6)

Reset to base

Quantity to craftScales ingredients, labor, time, output & total raw by the number of crafts.

Ingredients

Ingredients for this recipe

Ingredient	Qty	Type
Plastic	4	item
Glass	2	item

Byproducts (garbage)

Garbage byproducts of this recipe

Material	Qty / craft
Plastic Scrap	0.32
Glass Scrap	0.08

Crafting waste collects in the station's garbage output and must be hauled away or recycled — see the Garbage & Recycling guide.

Crafting

Crafting stats

Labor	90 calories
Craft time	2 min
Throughput	≈ 30 Fiberglass / hour (base)

Recycling & waste

• 0.4× Plastic Scrap
• 0.2× Glass Scrap

The same salvage value leaks out as garbage when this item is consumed in crafting.

How garbage, sorting & recycling work

Total raw to craft this

Recompute for my setup

• 20× Limestone
• 16.03× Silica (any)
• 7.83× Crushed Limestone
• 6.88× Iron Ore
• 3.1× Clay
• 2.33× Wood (any)

Approximate — category ingredients and any production cycles are counted as raw.

Categories

• Ingredient
• Parts
• Product

Obtained from

• Fiberglass

Used in

• Fiber Reinforced Concrete

• Servo

• Handheld Camera
• Remote Detonator
• Substrate

• Composite Bow

• Chainsaw
• Modern Axe
• Modern Hammer
• Modern Hoe
• Modern Machete
• Modern Paint Sprayer
• Modern Pickaxe
• Modern Scythe
• Modern Shovel

See also

Advanced CircuitAdvanced Combustion EngineBasic CircuitBoilerCoarse StoneCombustion Engine