---
title: Materials Overview
slug: materials
description: This page provides a brief overview of Carbon and Carbon compatible resins, including the distinct benefits of One-Part and Two-Part formulations.
docTags: 
createdAt: 2024-05-23T16:45:02.078Z
---

# Introduction

Carbon resins are the raw materials from which parts are built using Digital Light Synthesis™. These curable liquid polymers are shaped using a series of projected UV light images. All parts printed on a Carbon printer hav&#x65;**&#x20;isotropic material properties** due to Carbon's patented CLIP technology.

Click a link below to go to a specific material group:

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[Dental Materials](docId\:LJaakrscGxL6cCrIgvprj)&#x20;
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[Elastomeric Materials](docId\:fp8qh0B0NMEh9R3jQTZAi)&#x20;
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[Rigid Materials](docId\:xVYoP41S1t9WjDNPYiDV_)&#x20;
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Valuable information is available as printable handouts to be used in your production facility:

- [Dental Post-Processing Grids](docId\:BpjqrhGaWLhCHkvgPpY2L)
- [Lab Reference Grids](docId\:UJF4K0NY4lYE74ZoHX1R-)&#x20;
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## Safety Data Sheets (SDS)

An SDS is a document that lists information relating to occupational safety and health for the use of various substances and products. These documents can be found on Carbon's main website here: [www.carbon3d.com/stewardship](https://www.carbon3d.com/stewardship?search=sds)

## Pricing

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Resin prices (including bulk prices) are available on the [Carbon Resin Price List](docId:9wjoL9N6UfJqeivqMUlRZ)*&#x20;(login required).*
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## Compliance and Safety Documentation

Safety data sheets and other compliance-related documentation (ROHS, REACH, etc.) for all Carbon resins can be found at [https://www.carbon3d.com/stewardship](https://www.carbon3d.com/stewardship).

# One-Part Resins

These materials are single component formulations. They are typically best suited for prototyping or specialized applications, and are used extensively in oral health.&#x20;

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**Characteristics**

- Single component
- Poured directly into the cassette
- Reusable
- Printed parts are cured using UV light only
- Optional color mixing

**Mechanical Properties**

- Lower mechanical strength & abrasion resistance
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![Bottle of DPR 10 resin](https://res.cloudinary.com/carbon3d/image/upload/Education/Materials/materials_overview/One-part-dpr10.png)
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# Two-Part Resins

These materials consist of two components, **part A and part B.** They are packaged separately and must be combined and properly mixed before being dispensed into the printer cassette for printing.&#x20;

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See [Resin Mixing and Dispensing](docId:4lwK3k36RFqf2RAOVXszx)  for more information on mixing options and processes.
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The mixed resin has a defined pot life or working time, generally 8 hours. Please refer to the material protocol sheet for the exact pot life for the material in question.

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**Characteristics:**

- Dual component resins - Part A & B&#x20;
- Part A & B mixed at the time of dispensing&#x20;
- Limited lifetime (pot life) for use once mixed
- Dual Cure - Printed parts are cured in an oven to achieve ultimate mechanical properties

**Mechanical Properties:**

- Strong and abrasion-resistant


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![Cans of RPU 70 Part A and Part B](https://res.cloudinary.com/carbon3d/image/upload/Education/Materials/materials_overview/Two-part-rpu70.png)
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## Dual Cure

Carbon resins are unique due to their dual cure process. The first cure occurs during printing, where DLP projection of UV light sets the liquid resin into a solid shape. This initial UV cure creates a **"green state"** part, which is solid enough to be handled, cleaned, and prepared for further processing.

The second cure, known as the **thermal cure or bake,** involves a precise thermal process performed in a convection oven. During this step, the material undergoes extensive cross-linking, transforming into a highly durable, engineering-grade material.

![](https://res.cloudinary.com/carbon3d/image/upload/Education/Materials/materials_overview/dual-cure-resin01.png)

# Material Selection

Selecting an appropriate material is a critical component of the part's success. This selection process can be complex and confusing. The following information offers some guidance.

**Material Selection Process**

The material selection process will narrow the list of manufacturing methods available for an application and provide a handful of suitable materials. Knowing the material options for DLS manufacturing is important for establishing design possibilities.

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**Identify** the end-use application of the component.
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**Evaluate** the critical performance needs of the application.

- Material type:
  - Rigid
  - Elastomer
- Temperature requirements
- Chemical resistance&#x20;
- Biocompatibility needs
- Needed mechanical performance
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**Select** a suitable material by reviewing material resources.

- [DLS Design Quick Guide ](docId\:t94PR-A-C0pIhY6LJsWk7)&#x20;
  This guide contains resources that will help you select a material.
  - **Material Property Summary Chart** - This table lists the properties of all Carbon materials in one place. A great reference for engineers and designers!
  - **Material Chemical Compatibility** - This table summarizes degradation of Carbon materials as tested against common chemicals.
- [Material Technical Data Sheets](https://www.carbon3d.com/materials)**&#x20;(TDS)**
  This page shows all of the materials available on Carbon's platform including rigid, elastomeric and dental specific resins. Click on a material category to see the full list with links to TDSs.
- [Carbon Alternatives to Common Thermoplastics](https://docs.carbon3d.com/files/one-pagers/carbon-thermoplastic-comparison-table.pdf)****
  Comparison table of common thermoplastics to Carbon materials
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