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Origin Pro™ Compare

Review side-by-side product details, technical notes, and practical differences.

Product Comparison

HP4 Hybrid Polymer vs Sikaflex NP 1

HP4 | Hybrid Polymer Exterior Sealant

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HP4 | Hybrid Polymer Exterior Sealant

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Sika® Sikaflex® NP 1

Compared with

Sika® Sikaflex® NP 1

Core Performance & Application Attributes

Sealant Technology

HP4 | Hybrid Polymer Exterior Sealant

Advanced Hybrid Polymer (SMP / MS Polymer)

Sika® Sikaflex® NP 1

Moisture-Curing Polyurethane (Urethane)
Product Class & Movement (ASTM C920)

HP4 | Hybrid Polymer Exterior Sealant

ASTM C920 – Class 25 (±25% joint movement)

Sika® Sikaflex® NP 1

ASTM C920 – Class 35 (±35% joint movement)
Skin Formation / Tack-Free Performance

HP4 | Hybrid Polymer Exterior Sealant

Skin 15–20 minutes / Tack-Free approximately 30 minutes

Sika® Sikaflex® NP 1

Skins overnight (within 24 hours); Full cure approximately 1 week
Application Temperature Range

HP4 | Hybrid Polymer Exterior Sealant

0° F to 120° F

Sika® Sikaflex® NP 1

Application generally recommended at 40° F and above (per TDS guidance)
Nozzle Options

HP4 | Hybrid Polymer Exterior Sealant

V-notch option for 3/8" siding joint coverage plus standard 4" nozzle for 1/4" window bead applications

Sika® Sikaflex® NP 1

Standard nozzle configuration

Comparative Overview

Both HP4 and Sikaflex® NP 1 are designed for exterior sealing applications and meet ASTM C920 requirements.

Attribute HP4 | Hybrid Polymer Exterior Sealant Sika® Sikaflex® NP 1
Hybrid Polymer Technology
✓
✕
Polyurethane (Urethane) Technology
✕
✓
ASTM C920 Class 25
✓
✕
ASTM C920 Class 35
✕
✓
Faster Skin / Cure Profile
✓
✕
Application Temperature Down to 0°F
✓
✕
Intended Use – Siding & Window
✓
✕
Intended Use – Roofing / Commercial
✕
✓
Direct-to-Contractor Platform
✓
✕

Hybrid Polymer Technology

HP4 | Hybrid Polymer Exterior Sealant

✓

Sika® Sikaflex® NP 1

✕

Polyurethane (Urethane) Technology

HP4 | Hybrid Polymer Exterior Sealant

✕

Sika® Sikaflex® NP 1

✓

ASTM C920 Class 25

HP4 | Hybrid Polymer Exterior Sealant

✓

Sika® Sikaflex® NP 1

✕

ASTM C920 Class 35

HP4 | Hybrid Polymer Exterior Sealant

✕

Sika® Sikaflex® NP 1

✓

Faster Skin / Cure Profile

HP4 | Hybrid Polymer Exterior Sealant

✓

Sika® Sikaflex® NP 1

✕

Application Temperature Down to 0°F

HP4 | Hybrid Polymer Exterior Sealant

✓

Sika® Sikaflex® NP 1

✕

Intended Use – Siding & Window

HP4 | Hybrid Polymer Exterior Sealant

✓

Sika® Sikaflex® NP 1

✕

Intended Use – Roofing / Commercial

HP4 | Hybrid Polymer Exterior Sealant

✕

Sika® Sikaflex® NP 1

✓

Direct-to-Contractor Platform

HP4 | Hybrid Polymer Exterior Sealant

✓

Sika® Sikaflex® NP 1

✕

Differences You’ll Notice

Sikaflex® NP 1 is a polyurethane sealant frequently specified for commercial roofing, façade systems, and higher-movement joints. HP4 is positioned for siding, window, and trim installations requiring efficient application, faster tack-free timing, and broader temperature flexibility. Contractors selecting between the two should consider project type: commercial façade and roofing applications versus residential siding and window installations.

Ready to Make the Switch?

Advanced hybrid technology. Built for siding and window installs. Delivered direct.

View HP4 Hybrid Polymer Details

The product comparison data provided is based on technical specifications published by the original manufacturers at the time of review. All references are for functional and category comparison only and do not imply product equivalence, approval, certification, or endorsement. Users should consult technical documentation and conduct their own performance evaluation to determine fitness for use in specific applications. Legacy Sealants, Inc. assumes no liability for third-party performance claims or changes in manufacturer formulations.