Product Facts

Product Name: Selleys N-Mastic - Non-Hardening Polybutene Sealant 410g
Availability: In Stock
Condition: New
Category: Home & Garden > Sealants & Fillers
Seller: Selleys

Selleys N-Mastic - Non-Hardening Polybutene Sealant 410g

Name: Selleys N-Mastic - Non-Hardening Polybutene Sealant 410g
Brand: Selleys
Availability: InStock

Get a strong and flexible bond with Selleys N-Mastic from our flexible gap filler range. Perfect for sealing gaps and joints in your surfaces. This non-hardening, polybutene-based compound remains permanently soft and paste-like, providing excellent adhesion to glass, masonry, metals, expanded foam panels, timber, and plastics. Features moisture resistance, low shrinkage, and a wide service temperature range from -40°C to +80°C.

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Safety Data Sheet - AU

Technical Data Sheet - AU

View Product Guide

Product Data (OpenAI Spec)

View Full JSON Spec ↗

Specifications

VOC	135 g/L
Colour	Off-White
Density	1.4 ±8%
Technology	Polybutene
Limitations	For concealed joints only
Directions for Use	1. Ensure surface is clean and dry. 2. Clean with mineral turpentine. 3. Apply using caulking gun.
Service Temperature	-40°C to +80°C

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AI Agent Access

This page is available as structured data for AI agents. All resources are static files served from Cloudflare's edge network with 24-hour caching.

MCP Server

https://directory.selleys.com.au/putty-fillers/specialist-fillers-and-putty/selleys-n-mastic-non-hardening-polybutene-sealant-410g/public-mcp

MCP Manifest

https://directory.selleys.com.au/putty-fillers/specialist-fillers-and-putty/selleys-n-mastic-non-hardening-polybutene-sealant-410g/mcp.json

Root Directory

https://directory.selleys.com.au/public-mcp

Transport

Streamable HTTP · MCP 2025-03-26

WebMCP

navigator.modelContext tools (Chrome 146+)

Available Formats

Direct HTTP Access

Fetch any resource directly with standard HTTP:

curl https://directory.selleys.com.au/putty-fillers/specialist-fillers-and-putty/selleys-n-mastic-non-hardening-polybutene-sealant-410g/index.json      # Structured data
curl https://directory.selleys.com.au/putty-fillers/specialist-fillers-and-putty/selleys-n-mastic-non-hardening-polybutene-sealant-410g/index.jsonld    # Schema.org linked data
curl https://directory.selleys.com.au/putty-fillers/specialist-fillers-and-putty/selleys-n-mastic-non-hardening-polybutene-sealant-410g/index.md        # LLM-friendly text
curl https://directory.selleys.com.au/putty-fillers/specialist-fillers-and-putty/selleys-n-mastic-non-hardening-polybutene-sealant-410g/mcp.json        # MCP manifest

MCP Client Configuration

Connect your AI agent to this page's MCP server endpoint:

Claude Desktop

Add to claude_desktop_config.json:

{
  "mcpServers": {
    "directory": {
      "type": "http",
      "url": "https://directory.selleys.com.au/putty-fillers/specialist-fillers-and-putty/selleys-n-mastic-non-hardening-polybutene-sealant-410g/public-mcp"
    }
  }
}

ChatGPT

In ChatGPT, go to Settings → Connectors → Create and enter:

Name: directory
URL:  https://directory.selleys.com.au/putty-fillers/specialist-fillers-and-putty/selleys-n-mastic-non-hardening-polybutene-sealant-410g/public-mcp

OpenAI MCP docs →

Gemini

Add to Gemini CLI settings.json:

{
  "mcpServers": {
    "directory": {
      "httpUrl": "https://directory.selleys.com.au/putty-fillers/specialist-fillers-and-putty/selleys-n-mastic-non-hardening-polybutene-sealant-410g/public-mcp"
    }
  }
}

Claude Code

claude mcp add directory \
  --transport http https://directory.selleys.com.au/putty-fillers/specialist-fillers-and-putty/selleys-n-mastic-non-hardening-polybutene-sealant-410g/public-mcp

How it works

Each page is pre-rendered in multiple formats and published to Cloudflare R2. The MCP server speaks JSON-RPC 2.0 over Streamable HTTP, backed by edge-cached resources from 300+ locations worldwide.

Protocol: MCP 2025-03-26 (Streamable HTTP + Legacy SSE)
Caching: Workers KV manifests (24h) + edge-cached content (1h)
Authentication: None required — public read-only access