---
title: RPU 130
slug: materials/rpu-130
description: RPU 130 is strong, tough, and heat resistant with an impact resistance of 76 J/m and heat deflection temperature of 119 °C. Use this guide to understand how to print with this tough Carbon resin.
docTags: 
createdAt: 2024-06-28T18:33:37.060Z
---

# Overview

::::VerticalSplit{layout="middle"}
:::VerticalSplitItem
**RPU 130** is a strong, tough, and heat-resistant material with an impact resistance of 76 J/m and a heat deflection temperature of 119°C. Made with 30% bio-based Susterra® propanediol, it balances performance and sustainability. Its properties make it comparable to unfilled thermoplastics like nylon and polypropylene.
:::

:::VerticalSplitItem
::Image[]{src="https://api.archbee.com/api/optimize/3CesIL2dYMCHPZvRjp8S0/An7OZXMg7UmvN-fpWT92n_rpu130-bracket01.jpg" size="90" width="317" height="198" position="center" showCaption="false"}
:::
::::

## Notes

- **Not compatible** with the **M1 printer**; compatible with M2, M3, M3 Max and L1 printers.
- M2 printer requires a C5 heated cassette and C5 connector cable.&#x20;
- Requires a Cox Dual-Drive Dispenser.
- Smart Part Washer compatible with DPM (di(propylene glycol) methyl ether; CAS 34590-94-8; 99+% purity). **Not compatible with VF 1 solvent.**
- Sustainability: 29.5% plant-based material.
- **U.S. customers only:&#x20;**&#x43;ontact Carbon Support to complete one-time only EPA regulatory paperwork to purchase RPU 130.

## Resource Links

::::LinkArray{contentSource="CUSTOM"}
:::LinkArrayItem{headerType="IMAGE" headerImage="https://api.archbee.com/api/optimize/uXbZOKjJTGpPhjapQ8fvM-xNW60Acbs7Okn-DFgj_gP-20241126-190310.jpg"}
[About the Material
](https://www.carbon3d.com/materials/rpu-130)Material overview and uses cases &#x20;
:::

:::LinkArrayItem{headerType="IMAGE" headerImage="https://api.archbee.com/api/optimize/3CesIL2dYMCHPZvRjp8S0/meEa1m4VN4HOvIJpjIIld-20251016-220433.jpg"}
[Technical Data Sheet
](https://docs.carbon3d.com/files/technical-data-sheets/tds_carbon_rpu-130.pdf)\`\`Mechanical properties and data
:::

:::LinkArrayItem{headerType="IMAGE" headerImage="https://api.archbee.com/api/optimize/3CesIL2dYMCHPZvRjp8S0/1r3fpdvMUMFVZGfey2Tjn-20251016-221405.jpg"}
[Safety Data Sheet](https://www.carbon3d.com/stewardship)
*Login required*
:::
::::

# Protocol Sheet

This downloadable handout provides important usage information, including instructions about compatible hardware, storage, resin dispensing, washing and curing. Print it out and bring it into the lab.

::::VerticalSplit{layout="left"}
:::VerticalSplitItem
**English**
:::

:::VerticalSplitItem
::File{src="https://api.archbee.com/api/presign/3CesIL2dYMCHPZvRjp8S0/3RejcRtJoy9naDRZVf5R8-20260115-212347.pdf" label="RPU 130 Protocol v0201.pdf"}
:::
::::

::::VerticalSplit{layout="left"}
:::VerticalSplitItem
**Spanish/Español&#x20;**
:::

:::VerticalSplitItem
::File{src="https://api.archbee.com/api/presign/uXbZOKjJTGpPhjapQ8fvM-zvZP4R_CexUg8e-rxQggp-20250130-004245.pdf" label="RPU 130 Protocol v01.07 REL_ES.pdf"}
:::
::::

::::VerticalSplit{layout="left"}
:::VerticalSplitItem
**German/Deutsch**
:::

:::VerticalSplitItem
::File{src="https://api.archbee.com/api/presign/uXbZOKjJTGpPhjapQ8fvM-zJXF2i_udyBNNV8F3l8gJ-20250130-004259.pdf" label="RPU 130 Protocol v01.07 REL_DE.pdf"}
:::
::::

# Design

- If attempting feature sizes smaller than the [recommended feature sizes](docId\:t94PR-A-C0pIhY6LJsWk7), note the following for RPU 130:
  - **Thin walls** are especially susceptible to deformation after washing with DPM solvent. Handle thin features with extra care in the green state before baking.
  - **Holes and engravings&#x20;**(negative features) may be difficult to fully clean due to the high viscosity of the liquid resin.



# Digital Prep

## Stability Supports

Suction and resin flow forces will be higher at the beginning of a print as the cassette is still heating up.&#x20;

- Orient parts to keep thin/delicate features later in the print and/or
- Utilize more [stability supports](docId\:DoBa4qKKoXpi-52yw3nCr) on thin/delicate features.

## M2 Printer Project Estimates&#x20;

**Print Stats & Project Analysis&#x20;**&#x63;an be run in the printer UI for estimation purposes with or without the C5 cassette installed.

::::VerticalSplit{layout="middle"}
:::VerticalSplitItem
- Access the **Print Controls** tab.
- Under the <font color="#ff9900">**Cassettes** </font>pull-down menu, select the M2C5 option.
- Run analysis for estimation purposes on the **Project analysis** tab.

Please Note:

- The C5 cassette must be installed for printing.
- Selecting a cassette type for analysis will not effect the cassette type you ultimately print with.
:::

:::VerticalSplitItem
![Print control cassette drop down menu](https://api.archbee.com/api/optimize/3CesIL2dYMCHPZvRjp8S0/JWqhE2kheRRTy6Uq1isD5_image.png)
:::
::::

# Thermal Processing

Some resins may crystallize or freeze at lower temperatures requiring a thermal processing step, also known as incubation, prior to dispensing.

:::hint{type="info"}
Reference this downloadable PDF for instructions.

::File{src="https://api.archbee.com/api/presign/3CesIL2dYMCHPZvRjp8S0/RARgfnxBS7FnQzm-evFYq-20260218-210534.pdf" label="Resin Thermal Processing v0502.pdf"}
:::

# Dispensing

## C5 Cassette

On M2 printers, RPU 130 requires the use of a heated cassette, type C5, and a C5 cable. The M3 and L1 printers have built-in heating components to accommodate RPU 130.

For more information about the C5 Cassette, please see [C5 Cassette](docId\:L2pJEUfZNHEnPzTDqfvZV).&#x20;

## Film on Surface

::::VerticalSplit{layout="middle"}
:::VerticalSplitItem
RPU 130 will develop a **film on the surface** of the liquid resin after dispensing.&#x20;

This is normal and will not affect the print.
:::

:::VerticalSplitItem
![](https://api.archbee.com/api/optimize/3CesIL2dYMCHPZvRjp8S0/rjHiFRTZ4e-yOYo3ODJ5g_image.png)
:::
::::

# Washing

- **Washing on platform strongly recommended to prevent warping.**
- Wash parts as soon as possible after printing for best results.
  - Expect more touch-up if parts are waiting for washing. This is especially true for overnight prints.

## Blue Sheen and Film

A blue sheen and film on parts before washing is normal.
If blue sheen remains after washing:

- Further touch up of parts via swabbing may reduce the surface finish inconsistency.
- The blue sheen is surface-only and will not affect material properties.

::::VerticalSplit{layout="middle"}
:::VerticalSplitItem
Blue sheen on unwashed parts

![Blue sheen on unwashed parts](https://api.archbee.com/api/optimize/3CesIL2dYMCHPZvRjp8S0/OoMglFKFMgQzpJqNkT1RM_rpu130-blue-sheen-prewash01.jpg)
:::

:::VerticalSplitItem
Blue sheen on parts after washing

![Blue sheen on parts after washing](https://api.archbee.com/api/optimize/3CesIL2dYMCHPZvRjp8S0/sSWuocIgimHWUMmQIUYK-_rpu130-blue-sheen-postwash01.jpg)
:::
::::

## Scratches

::::VerticalSplit{layout="middle"}
:::VerticalSplitItem
- Washing parts on platform recommended.
  - Washing multiple parts off platform will lead to scratching in an orbital wash.
- Allow parts to fully dry before handling.
  - Air dry on platform.
  - Or dry more quickly by utilizing the compressed air cabinet.
:::

:::VerticalSplitItem
![](https://api.archbee.com/api/optimize/3CesIL2dYMCHPZvRjp8S0/LomTHfmdVcYTxgHsWDwbv_scratches.jpg)
:::
::::

## Warping

Washing parts on the platform is strongly recommended to prevent solvent warping.

![](https://api.archbee.com/api/optimize/3CesIL2dYMCHPZvRjp8S0/QyBULJ7e4Us-zlZBylpgq_rpu130-warping.png)

# Curing

RPU 130 is less susceptible to sagging than other resins during thermal curing.
