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

Product comparison

HP4 Hybrid Polymer vs Sikaflex NP 1

Sellador exterior de polímero híbrido HP4

Origin Pro

Sellador exterior de polímero híbrido HP4

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Sika® Sikaflex® NP 1

Compared with

Sika® Sikaflex® NP 1

Core Performance & Application Attributes

Sealant Technology

Sellador exterior de polímero híbrido HP4

Advanced Hybrid Polymer (SMP / MS Polymer)

Sika® Sikaflex® NP 1

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

Sellador exterior de polímero híbrido HP4

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

Sika® Sikaflex® NP 1

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

Sellador exterior de polímero híbrido HP4

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

Sellador exterior de polímero híbrido HP4

0° F to 120° F

Sika® Sikaflex® NP 1

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

Sellador exterior de polímero híbrido HP4

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 Sellador exterior de polímero híbrido HP4 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
✕
✓

Hybrid Polymer Technology

Sellador exterior de polímero híbrido HP4

✓

Sika® Sikaflex® NP 1

✕

Polyurethane (Urethane) Technology

Sellador exterior de polímero híbrido HP4

✕

Sika® Sikaflex® NP 1

✓

ASTM C920 Class 25

Sellador exterior de polímero híbrido HP4

✓

Sika® Sikaflex® NP 1

✕

ASTM C920 Class 35

Sellador exterior de polímero híbrido HP4

✕

Sika® Sikaflex® NP 1

✓

Faster Skin / Cure Profile

Sellador exterior de polímero híbrido HP4

✓

Sika® Sikaflex® NP 1

✕

Application Temperature Down to 0°F

Sellador exterior de polímero híbrido HP4

✓

Sika® Sikaflex® NP 1

✕

Intended Use – Siding & Window

Sellador exterior de polímero híbrido HP4

✓

Sika® Sikaflex® NP 1

✕

Intended Use – Roofing / Commercial

Sellador exterior de polímero híbrido HP4

✕

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.

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Product Comparison Disclaimer

Product comparison information is based on publicly available technical data published by the respective manufacturers and available at the time of review. Comparisons are provided for general informational purposes only and do not imply product equivalence, specification approval, certification, or suitability for any particular application.

Product names, trademarks, packaging, and images are the property of their respective owners and are used solely for identification and comparative purposes. Legacy Sealants, Inc. and Origin Pro are not affiliated with, sponsored by, or endorsed by any referenced manufacturer.

Product formulations and specifications may change. Users should review current manufacturer technical literature and independently determine product suitability for their specific application.

All third-party trademarks are the property of their respective owners. Their use is solely for identification and comparative purposes and does not imply affiliation, sponsorship, or endorsement.