PHR stands for Parts per Hundred Resin. It is the standard unit in polymer compounding used to express the mass of an additive relative to 100 units of the base polymer mass.

How does the masterbatch calculation work?

The `calculate_masterbatch_requirement` tool calculates the total mass of masterbatch needed by first determining the required pure additive mass via PHR and then dividing by the masterbatch's active concentration.

Can I scale a formulation for a specific production run?

Yes, use the `scale_batch_size` tool. You provide the target total mass and a list of additives with their PHR values to get the exact mass for every component.

Polymer Additive Calculator MCP Connector for Claude

A+

Calculate precise additive concentrations, PHR, and batch sizes for polymer formulations.

4 tools Official Updated Oct 1, 2026 Official Vinkius Partner

More Details Connect to Claude

This MCP server provides specialized tools for polymer compounding engineers to determine precise additive concentrations and batch quantities. It handles complex calculations including PHR (Parts per Hundred Resin) to mass conversions, weight percentage concentrations, masterbatch dilution requirements, and scaling theoretical formulations to specific target batch sizes. Use calculate_phr_to_mass to find additive weights, calculate_masterbatch_requirement to account for carrier resin dilution, and scale_batch_size to prepare production quantities.

polymerphrcompoundingchemistrymanufacturing

Connect to Claude

Subscribe on Vinkius, then add this connector to Claude.ai or Claude Code.

① Claude.ai (web app)

Go to Settings → Connectors → Add custom connector
Paste the MCP endpoint URL below

https://edge.vinkius.com/vk_preview_Ub14ZNoEdKsHgnuMIxKhJcULR07aaBcmcKwvYm6g/mcp

② Claude Code (terminal)

claude mcp add --transport http polymer-additive-calculator https://edge.vinkius.com/vk_preview_Ub14ZNoEdKsHgnuMIxKhJcULR07aaBcmcKwvYm6g/mcp

③ Claude Desktop

Add to claude_desktop_config.json:

{
  "mcpServers": {
    "polymer-additive-calculator": {
      "url": "https://edge.vinkius.com/vk_preview_Ub14ZNoEdKsHgnuMIxKhJcULR07aaBcmcKwvYm6g/mcp"
    }
  }
}

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