KYK MegaSıva Fiber Reinforced H105 | Fiber Reinforced Fine Plaster Resistant to Outdoor Conditions

22/07/2026

KYK MegaSıva Fiber Reinforced H105 | Fiber Reinforced Fine Plaster Resistant to Outdoor Conditions

KYK MegaSıva Fiber Reinforced H105 | Fiber Reinforced Fine Plaster Resistant to Outdoor Conditions

Product Description

KYK MegaSıva Fiber Reinforced H105 is a cement-based, single-component, fiber-reinforced fine plaster. Thanks to its chemical additives and enhanced adhesion properties, it provides a surface resistant to cracking and shrinkage. It creates a smooth, strong, and paint-ready surface before final coating applications.

Key Advantages

Outdoor Resistant:
Provides high resistance against external weather conditions.

High Adhesion Strength:
Creates strong bonding with the substrate and prevents peeling.

Crack Control:
Fiber reinforcement reduces the risk of cracking.

Easy Application:
Its single-component formulation allows fast mixing and homogeneous application.

Application Areas

  • Interior and exterior walls and ceilings
  • Aerated concrete surfaces (primed with MegaFilm A201)
  • Concrete surfaces (primed with MegaFilm A201 or BB A204)
  • Rough plastered surfaces (e.g., after MegaSıva K H102, Machine Interior H107, Machine Exterior H108, Fiber Reinforced K H106 applications)

Technical Specifications

PropertyValueStandard
Dry Bulk Density1.45 ± 0.1 g/cm³TS EN 1015-10
Mortar Density1.75 ± 0.1 g/cm³
Compressive StrengthCS IVTS EN 1015-11
Bond Strength> 0.5 N/mm²TS EN 1015-12
Capillary Water AbsorptionW1TS EN 1015-18
Water Vapor PermeabilityμTS EN 1015-19
Air Content7 ± 0.5%TS EN 1015-7
Reaction to FireA1TS EN 13501-1
Workability Time> 4 hoursTS EN 1015-9
Particle Size≤ 600 μm
Layer Thickness2–7 mm
ColorGrey / White

Application Information

Application Temperature:
+5°C to +35°C

Mixing Ratio:
7.5–8.5 liters of water for a 35 kg bag (22–24%)

Pot Life:
Maximum 1 hour

Correction Time:
Maximum 30 minutes

Full Drying Time:
Minimum 2 days


Application Instructions

Surface Preparation

The surface must be clean, dry, sound, and free from oil, dirt, dust, and loose particles.

Primer Application:

Aerated Concrete:
MegaFilm A201

Exposed Concrete:
MegaFilm BB A204 (minimum 3 hours drying time)


Mixing Preparation

Mix with a low-speed mixer until a homogeneous, lump-free consistency is obtained. Allow the mixture to rest for 3–4 minutes, then remix for another 1–2 minutes before application.


Application

Apply with a steel trowel in a thickness of 2–7 mm. Level the surface with a straight edge. After the surface releases excess water, perform final finishing with a float and complete smoothing using a damp sponge.


Curing and Protection

  • Full drying time is minimum 2 days.
  • For improved durability, the surface should be moistened periodically for 7 days after application.
  • Protect the applied surface from rain for 24 hours.

Conditions Where Application Should Be Avoided

Do not apply on:

  • Frozen surfaces or surfaces with frost risk
  • Surfaces exposed to excessive wind or direct sunlight
  • Material exceeding its pot life

Do not add extra water or any additional materials into the mortar.


Consumption / Coverage (For 1 mm Thickness)

Surface TypeConsumption (kg/m²)
Aerated Concrete1.5 – 2.5
Primed Concrete2.0 – 3.0
Rough Plastered Surface2.0 – 3.0

Packaging and Storage

Packaging:
35 kg kraft bag

Pallet:
42 bags (1,470 kg)

Shelf Life:
24 months (in unopened original packaging)

Storage Conditions:
Store in a dry and cool environment between +5°C and +25°C, with maximum 60% relative humidity. Protect from direct sunlight.


Standards and Certifications

  • Complies with TS EN 998-1 (GP)
  • CE compliant

Frequently Asked Questions (FAQ)

On which surfaces can H105 be applied?

KYK MegaSıva Fiber Reinforced H105 can be applied on aerated concrete (primed with A201), concrete (primed with A201/BB A204), and rough plastered interior and exterior wall and ceiling surfaces.

What is the recommended application thickness?

The recommended thickness is 2–7 mm per layer.

What is the mixing ratio and pot life?

For a 35 kg bag, use 7.5–8.5 liters of water (22–24%). The prepared mixture should be used within a maximum of 1 hour.

What are the correction and drying times?

Surface correction time is maximum 30 minutes, and full drying time is minimum 2 days.

Why does the product contain fiber reinforcement?

Fiber reinforcement increases resistance against cracking and shrinkage while improving outdoor durability.


KYK MegaSıva Fiber Reinforced H105 is a high-performance fine plaster solution offering superior adhesion, crack resistance, and durability for both interior and exterior applications. Its fiber-reinforced structure provides reliable performance and smooth, long-lasting surfaces before final coating applications.